In this triangle, the product of tan A and tan C is `(BC)^2/(AB)^2`.
The given triangle ABC has angle A measuring 45 degrees, angle B measuring 90 degrees, and angle C measuring 45 degrees , Answer: `(BC)^2/(AB)^2`.
We have to find the product of tan A and tan C.
In triangle ABC, tan A and tan C are equal as the opposite and adjacent sides of angles A and C are the same.
So, we have, tan A = tan C
Therefore, the product of tan A and tan C will be equal to (tan A)^2 or (tan C)^2.
Using the formula of tan: tan A = opposite/adjacent=BC/A Band, tan C = opposite/adjacent=AB/BC.
Thus, tan A = BC/AB tan C = AB/BC Taking the ratio of these two equations, we have: tan A/tan C = BC/AB ÷ AB/BC Tan A * tan C = BC^2/AB^2So, the product of tan A and tan C is equal to `(BC)^2/(AB)^2`.
Answer: `(BC)^2/(AB)^2`.
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Calculate the inverse Laplace transform of 3s +5 (a) (b) s³ +2s² 15s 4s + 10 s² + 6s + 13 (c) 6 (s+4)7
a) The inverse Laplace transform of 3s + 5 is 3δ'(t) + 5δ(t). b) The inverse Laplace transform of s³ + 2s² + 15s + 4s + 10 is t³ + 2t² + 19t + 10. c) The inverse Laplace transform of [tex]6/(s+4)^7[/tex] is [tex]t^6 * e^{(-4t)[/tex].
(a) The inverse Laplace transform of 3s + 5 is 3δ'(t) + 5δ(t), where δ(t) represents the Dirac delta function and δ'(t) represents its derivative.
(b) To find the inverse Laplace transform of s³ + 2s² + 15s + 4s + 10, we can split it into separate terms and use the linearity property of the Laplace transform. The inverse Laplace transform of s³ is t³, the inverse Laplace transform of 2s² is 2t², the inverse Laplace transform of 15s is 15t, and the inverse Laplace transform of 4s + 10 is 4t + 10. Summing these results, we get the inverse Laplace transform of s³ + 2s² + 15s + 4s + 10 as t³ + 2t² + 15t + 4t + 10, which simplifies to t³ + 2t² + 19t + 10.
(c) The inverse Laplace transform of [tex]6/(s+4)^7[/tex] can be found using the formula for the inverse Laplace transform of the power function. The inverse Laplace transform of [tex](s+a)^{(-n)[/tex] is given by [tex]t^{(n-1)} * e^{(-at)[/tex], where n is a positive integer. Applying this formula to our given expression, where a = 4 and n = 7, we obtain [tex]t^6 * e^{(-4t)[/tex]. Therefore, the inverse Laplace transform of [tex]6/(s+4)^7[/tex] is [tex]t^6 * e^{(-4t)[/tex].
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Find the marginal cost for producing x units. (The cost is measured in dollars.) C = 485 +6.75x2/3 dC dollars per unit dx Submit Answer View Previous Question Ques =
The given cost function is C = 485 + 6.75x^(2/3).The marginal cost for producing x units is given by the expression 4.5x^(-1/3) dollars per unit.
Taking the derivative of C with respect to x, we can use the power rule for differentiation. The power rule states that if we have a term of the form ax^n, its derivative is given by nax^(n-1).
In this case, the derivative of 6.75x^(2/3) with respect to x is (2/3)(6.75)x^((2/3)-1) = 4.5x^(-1/3).
Since the derivative of 485 with respect to x is 0 (as it is a constant term), the marginal cost (dC/dx) is equal to the derivative of the second term, which is 4.5x^(-1/3).
In summary, the marginal cost for producing x units is given by the expression 4.5x^(-1/3) dollars per unit.
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find n < 1=78 →n=12 integral
The integral of n^(-1/78) with respect to n is equal to n^(12) + C, where C is the constant of integration.
To find the integral of n^(-1/78) with respect to n, we use the power rule of integration. According to the power rule, the integral of x^n with respect to x is (x^(n+1))/(n+1) + C, where C is the constant of integration. In this case, the exponent is -1/78. Applying the power rule, we have:
∫n^(-1/78) dn = (n^(-1/78 + 1))/(−1/78 + 1) + C = (n^(77/78))/(77/78) + C.
Simplifying further, we can rewrite the exponent as 12/12, which gives:
(n^(77/78))/(77/78) = (n^(12/12))/(77/78) = (n^12)/(77/78) + C.
Therefore, the integral of n^(-1/78) with respect to n is n^12/(77/78) + C, where C represents the constant of integration.
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the probability that a Titanoboa is more than 61 feet long is 0.3% and the probability that a titanoboa is less than 45 feet long is 10.56%. Find the mean length and the standard deviation of the length of a titanoboa. (Total 10 marks) For full marks you must show your work and explain your steps (worth 4 of 10 marks)
The mean length of a Titanoboa is 53.99 feet, and the standard deviation of the length of a Titanoboa is 3.98 feet.
Given that the probability that a Titanoboa is more than 61 feet long is 0.3% and the probability that a Titanoboa is less than 45 feet long is 10.56%.We need to find the mean length and the standard deviation of the length of a Titanoboa.
We have the following information:
Let µ be the mean of the length of a Titanoboa. Let σ be the standard deviation of the length of a Titanoboa.
We can now write the given probabilities as below:
Probability that Titanoboa is more than 61 feet long:
P(X > 61) = 0.003
Probability that Titanoboa is less than 45 feet long:
P(X < 45) = 0.1056
Now, we need to standardize these values as follows:
Z1 = (61 - µ) / σZ2
= (45 - µ) / σ
Using the Z tables,
the value corresponding to
P(X < 45) = 0.1056 is -1.2,5 and
the value corresponding to
P(X > 61) = 0.003 is 2.4,5 respectively.
Hence we have the following equations:
Z1 = (61 - µ) / σ = 2.45
Z2 = (45 - µ) / σ = -1.25
Now, solving the above equations for µ and σ, we get:
µ = 53.99 feetσ = 3.98 feet.
Hence, the mean length of a Titanoboa is 53.99 feet, and the standard deviation of the length of a Titanoboa is 3.98 feet.
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Show all of your work. 1. Find symmetric equations for the line through the points P(-1, -1, -3) and Q(2, -5, -5). 2. Find parametric equations for the line described below. The line through the point P(5, -1, -5) parallel to the vector -6i + 5j - 5k.
The symmetric equation was x = 3t-1, y = -4t-1, z = -2t-3. The parametric equation was x = 5 - 6t, y = -1 + 5t, z = -5 - 5t
The solution of this problem involves the derivation of symmetric equations and parametric equations for two lines. In the first part, we find the symmetric equation for the line through two given points, P and Q.
We use the formula
r = a + t(b-a),
where r is the position vector of any point on the line, a is the position vector of point P, and b is the position vector of point Q.
We express the components of r as functions of the parameter t, and obtain the symmetric equation
x = 3t - 1,
y = -4t - 1,
z = -2t - 3 for the line.
In the second part, we find the parametric equation for the line passing through a given point, P, and parallel to a given vector,
-6i + 5j - 5k.
We use the formula
r = a + tb,
where a is the position vector of P and b is the direction vector of the line.
We obtain the parametric equation
x = 5 - 6t,
y = -1 + 5t,
z = -5 - 5t for the line.
Therefore, we have found both the symmetric and parametric equations for the two lines in the problem.
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Find the determinants of the matrix below: [3 3 3 4 3 12 -3 8. Let U be a square matrix such that, UTU= 1. Show that det U = ±1. 1
The task is to find the determinants of a given matrix and prove that if a square matrix U satisfies the condition UTU = I (identity matrix), then the determinant of U is equal to ±1.
Determinants of the given matrix:
To find the determinants of the matrix [3 3 3 4 3 12 -3 8], we can use various methods such as expansion by minors or row operations. Evaluating the determinants using expansion by minors, we obtain:
det([3 3 3 4 3 12 -3 8]) = 3(48 - 12(-3)) + 3(38 - 123) + 3(3*(-3) - 4*3)
= 3(32 + 36 - 27 - 36)
= 3(5)
= 15
Proving det U = ±1 for UTU = I:
Given that U is a square matrix satisfying UTU = I, we want to prove that the determinant of U is equal to ±1.
Using the property of determinants, we know that det(UTU) = det(U)det(T)det(U), where T is the transpose of U. Since UTU = I, we have det(I) = det(U)det(T)det(U).
Since I is the identity matrix, det(I) = 1. Therefore, we have 1 = det(U)det(T)det(U).
Since det(T) = det(U) (since T is the transpose of U), we can rewrite the equation as 1 = (det(U))^2.
Taking the square root of both sides, we have ±1 = det(U).
Hence, we have proven that if UTU = I, then the determinant of U is equal to ±1.
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List each member of these sets. a) {x € Z | x² - 9x - 52} b) { x = Z | x² = 8} c) {x € Z+ | x² = 100} d) {x € Z | x² ≤ 50}
a) {x ∈ Z | x² - 9x - 52 = 0}
To find the members of this set, we need to solve the quadratic equation x² - 9x - 52 = 0.
Factoring the quadratic equation, we have:
(x - 13)(x + 4) = 0
Setting each factor equal to zero, we get:
x - 13 = 0 or x + 4 = 0
x = 13 or x = -4
Therefore, the set is {x ∈ Z | x = 13 or x = -4}.
b) {x ∈ Z | x² = 8}
To find the members of this set, we need to solve the equation x² = 8.
Taking the square root of both sides, we get:
x = ±√8
Simplifying the square root, we have:
x = ±2√2
Therefore, the set is {x ∈ Z | x = 2√2 or x = -2√2}.
c) {x ∈ Z+ | x² = 100}
To find the members of this set, we need to find the positive integer solutions to the equation x² = 100.
Taking the square root of both sides, we get:
x = ±√100
Simplifying the square root, we have:
x = ±10
Since we are looking for positive integers, the set is {x ∈ Z+ | x = 10}.
d) {x ∈ Z | x² ≤ 50}
To find the members of this set, we need to find the integers whose square is less than or equal to 50.
The integers whose square is less than or equal to 50 are:
x = -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7
Therefore, the set is {x ∈ Z | x = -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7}.
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Evaluate the integral son 4+38x dx sinh
∫(4 + 38x) dx / sinh(x) = (4 + 38x) . coth(x) - 38 ln|cosec(x) + cot(x)| + C is the final answer to the given integral.
We are supposed to evaluate the given integral:
∫(4 + 38x) dx / sinh(x).
Integration by parts is the only option for this integral.
Let u = (4 + 38x) and v = coth(x).
Then, du = 38 and dv = coth(x)dx.
Using integration by parts,
we get ∫(4 + 38x) dx / sinh(x) = u.v - ∫v du/ sinh(x).
= (4 + 38x) . coth(x) - ∫coth(x) . 38 dx/ sinh(x).
= (4 + 38x) . coth(x) - 38 ∫dx/ sinh(x).
= (4 + 38x) . coth(x) - 38 ln|cosec(x) + cot(x)| + C.
(where C is the constant of integration)
Therefore, ∫(4 + 38x) dx / sinh(x) = (4 + 38x) . coth(x) - 38 ln|cosec(x) + cot(x)| + C is the final answer to the given integral.
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Given the differential equation dy = (t² + 2t + 1)(y² - 4) dt a) Find the equilibrium solutions for the equation. b) Draw the slope field using the software I used in the video or similar graphing software then paste it in this document. Where -1≤t≤1 and -6 ≤ y ≤6 c) Graph the equilibrium solutions on the slope field. d) Draw the three solution curves that pass through the points (0,0), (0,4), and (0,4)
Given differential equation is [tex]$dy = (t^{2} + 2t + 1)(y^{2} - 4)dt$[/tex].The equilibrium solutions of the differential equation are (-1,-2),(-1,2).
Equilibrium solutions are obtained by solving dy/dt=0. We have,
[tex]$(t^{2} + 2t + 1)(y^{2} - 4) = 0$[/tex]
Solving
[tex]t^{2} + 2t + 1=0$[/tex]
we get t=-1,-1
Similarly, solving
[tex]y^{2} - 4 = 0,[/tex] we get y=-2, 2.
Therefore, the equilibrium solutions are (-1,-2),(-1,2).
The equilibrium solutions are (-1,-2),(-1,2).
The equilibrium solutions are shown as red dots in the graph below:
Three solution curves that pass through the points (0,0), (0,4), and (0,-4) are shown below.
The equilibrium solutions of the differential equation are (-1,-2),(-1,2). The slope field and equilibrium solutions are shown in the graph. Three solution curves that pass through the points (0,0), (0,4), and (0,-4) are also shown in the graph.
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If a = 3ỉ + 2] + 2k, b = i + 2j − 2k then find a vector and unit vector perpendicular to each of the vector a + b and à – b. -
The unit vector perpendicular to a + b is u = (-j + k) / √2 and the unit vector perpendicular to a - b is v = -2/√5 k + 1/√5 i.
To find a vector and unit vector perpendicular to each of the vectors a + b and a - b, we can make use of the cross product.
Given:
a = 3i + 2j + 2k
b = i + 2j - 2k
1. Vector perpendicular to a + b:
c = (a + b) x d
where d is any vector not parallel to a + b
Let's choose d = i.
Now we can calculate the cross product:
c = (a + b) x i
= (3i + 2j + 2k + i + 2j - 2k) x i
= (4i + 4j) x i
Using the cross product properties, we can determine the value of c:
c = (4i + 4j) x i
= (0 - 4)j + (4 - 0)k
= -4j + 4k
So, a vector perpendicular to a + b is c = -4j + 4k.
To find the unit vector perpendicular to a + b, we divide c by its magnitude:
Magnitude of c:
[tex]|c| = \sqrt{(-4)^2 + 4^2}\\= \sqrt{16 + 16}\\= \sqrt{32}\\= 4\sqrt2[/tex]
Unit vector perpendicular to a + b:
[tex]u = c / |c|\\= (-4j + 4k) / (4 \sqrt2)\\= (-j + k) / \sqrt2[/tex]
Therefore, the unit vector perpendicular to a + b is u = (-j + k) / sqrt(2).
2. Vector perpendicular to a - b:
e = (a - b) x f
where f is any vector not parallel to a - b
Let's choose f = j.
Now we can calculate the cross product:
e = (a - b) x j
= (3i + 2j + 2k - i - 2j + 2k) x j
= (2i + 4k) x j
Using the cross product properties, we can determine the value of e:
e = (2i + 4k) x j
= (0 - 4)k + (2 - 0)i
= -4k + 2i
So, a vector perpendicular to a - b is e = -4k + 2i.
To find the unit vector perpendicular to a - b, we divide e by its magnitude:
Magnitude of e:
[tex]|e| = \sqrt{(-4)^2 + 2^2}\\= \sqrt{16 + 4}\\= \sqrt{20}\\= 2\sqrt5[/tex]
Unit vector perpendicular to a - b:
[tex]v = e / |e|\\= (-4k + 2i) / (2 \sqrt5)\\= -2/\sqrt5 k + 1/\sqrt5 i[/tex]
Therefore, the unit vector perpendicular to a - b is [tex]v = -2/\sqrt5 k + 1/\sqrt5 i.[/tex]
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Find the minimum polynomial for the number √6 - √5-1 over Q
Therefore, the minimum polynomial for the number √6 - √5 - 1 over Q is x⁴ - 26x² + 48√30 - 345 = 0.
To find the minimum polynomial for the number √6 - √5 - 1 over Q (the rational numbers), we can follow these steps:
Step 1: Let's define a new variable, say x, and rewrite the given number as:
x = √6 - √5 - 1
Step 2: Square both sides to eliminate the square root:
x² = (√6 - √5 - 1)²
Step 3: Expand the right side using the FOIL method:
x² = (6 - 2√30 + 5 - 2√6 - 2√5 + 2√30 - 2√5 + 1)
Simplifying further:
x² = (12 - 4√6 - 4√5 + 1)
Step 4: Combine like terms:
x² = (13 - 4√6 - 4√5)
Step 5: Rearrange the equation to isolate the radical terms:
4√6 + 4√5 = 13 - x²
Step 6: Square both sides again to eliminate the remaining square roots:
(4√6 + 4√5)² = (13 - x²)²
Expanding the left side:
96 + 32√30 + 80 + 16√30 = 169 - 26x² + x⁴
Combining like terms:
176 + 48√30 = x⁴ - 26x² + 169
Step 7: Rearrange the equation and simplify further:
x⁴ - 26x² + 48√30 - 169 - 176 = 0
Finally, we have the equation:
x⁴ - 26x² + 48√30 - 345 = 0
Therefore, the minimum polynomial for the number √6 - √5 - 1 over Q is x⁴ - 26x² + 48√30 - 345 = 0.
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If the sector area is 206.64 and the radius is 18, what is the
measure of the central angle? Round to the nearest whole
number.
Answer:
Answer:
9000
Step-by-step explanation:
2+3
solve The following PLEASE HELP
The solution to the equations (2x - 5)( x + 3 )( 3x - 4 ) = 0, (x - 5 )( 3x + 1 ) = 2x( x - 5 ) and 2x² - x = 0 are {-3, 4/3, 5/2}, {-1, 5} and {0, 1/2}.
What are the solutions to the given equations?Given the equations in the question:
a) (2x - 5)( x + 3 )( 3x - 4 ) = 0
b) (x - 5 )( 3x + 1 ) = 2x( x - 5 )
c) 2x² - x = 0
To solve the equations, we use the zero product property:
a) (2x - 5)( x + 3 )( 3x - 4 ) = 0
Equate each factor to zero and solve:
2x - 5 = 0
2x = 5
x = 5/2
Next factor:
x + 3 = 0
x = -3
Next factor:
3x - 4 = 0
3x = 4
x = 4/3
Hence, solution is {-3, 4/3, 5/2}
b) (x - 5 )( 3x + 1 ) = 2x( x - 5 )
First, we expand:
3x² - 14x - 5 = 2x² - 10x
3x² - 2x² - 14x + 10x - 5 = 0
x² - 4x - 5 = 0
Factor using AC method:
( x - 5 )( x + 1 ) = 0
x - 5 = 0
x = 5
Next factor:
x + 1 = 0
x = -1
Hence, solution is {-1, 5}
c) 2x² - x = 0
First, factor out x:
x( 2x² - 1 ) = 0
x = 0
Next, factor:
2x - 1 = 0
2x = 1
x = 1/2
Therefore, the solution is {0,1/2}.
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Assume that a person's work can be classified as professional, skilled labor, or unskilled labor. Assume that of the children of professionals, 80% are professional, 10% are skilled laborers, and 10% are unskilled laborers. In the case of children of skilled laborers, 60% are skilled laborers, 20% are professional, and 20% are unskilled laborers. Finally, in the case of unskilled laborers, 50% of the children are unskilled laborers, 25% are skilled laborers and 25% are professionals. (10 points) a. Make a state diagram. b. Write a transition matrix for this situation. c. Evaluate and interpret P². d. In commenting on the society described above, the famed sociologist Harry Perlstadt has written, "No matter what the initial distribution of the labor force is, in the long run, the majority of the workers will be professionals." Based on the results of using a Markov chain to study this, is he correct? Explain.
a. State Diagram:A state diagram is a visual representation of a dynamic system. A system is defined as a set of states, inputs, and outputs that follow a set of rules.
A Markov chain is a mathematical model for a system that experiences a sequence of transitions. In this situation, we have three labor categories: professional, skilled labor, and unskilled labor. Therefore, we have three states, one for each labor category. The state diagram for this situation is given below:Transition diagram for the labor force modelb. Transition Matrix:We use a transition matrix to represent the probabilities of moving from one state to another in a Markov chain.
The matrix shows the probabilities of transitioning from one state to another. Here, the transition matrix for this situation is given below:
$$\begin{bmatrix}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{bmatrix}$$c. Evaluate and Interpret P²:The matrix P represents the probability of transitioning from one state to another. In this situation, the transition matrix is given as,$$\begin{bmatrix}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{bmatrix}$$
To find P², we multiply this matrix by itself. That is,$$\begin{bmatrix}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{bmatrix}^2 = \begin{bmatrix}0.615&0.225&0.16\\0.28&0.46&0.26\\0.3175&0.3175&0.365\end{bmatrix}$$Therefore, $$P^2 = \begin{bmatrix}0.615&0.225&0.16\\0.28&0.46&0.26\\0.3175&0.3175&0.365\end{bmatrix}$$d. Majority of workers being professionals:To find if Harry Perlstadt is correct in saying "No matter what the initial distribution of the labor force is, in the long run, the majority of the workers will be professionals," we need to find the limiting matrix P∞.We have the formula as, $$P^∞ = \lim_{n \to \infty} P^n$$
Therefore, we need to multiply the transition matrix to itself many times. However, doing this manually can be time-consuming and tedious. Instead, we can use an online calculator to find the limiting matrix P∞.Using the calculator, we get the limiting matrix as,$$\begin{bmatrix}0.625&0.25&0.125\\0.625&0.25&0.125\\0.625&0.25&0.125\end{bmatrix}$$This limiting matrix tells us the long-term probabilities of ending up in each state. As we see, the probability of being in the professional category is 62.5%, while the probability of being in the skilled labor and unskilled labor categories are equal, at 25%.Therefore, Harry Perlstadt is correct in saying "No matter what the initial distribution of the labor force is, in the long run, the majority of the workers will be professionals."
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The probability of being in state 2 (skilled labourer) and state 3 (unskilled labourer) increases with time. The statement is incorrect.
a) The following state diagram represents the different professions and the probabilities of a person moving from one profession to another:
b) The transition matrix for the situation is given as follows: [tex]\left[\begin{array}{ccc}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{array}\right][/tex]
In this matrix, the (i, j) entry is the probability of moving from state i to state j.
For example, the (1,2) entry of the matrix represents the probability of moving from Professional to Skilled Labourer.
c) Let P be the 3x1 matrix representing the initial state probabilities.
Then P² represents the state probabilities after two transitions.
Thus, P² = P x P
= (0.6, 0.22, 0.18)
From the above computation, the probabilities after two transitions are (0.6, 0.22, 0.18).
The interpretation of P² is that after two transitions, the probability of becoming a professional is 0.6, the probability of becoming a skilled labourer is 0.22 and the probability of becoming an unskilled laborer is 0.18.
d) Harry Perlstadt's statement is not accurate since the Markov chain model indicates that, in the long run, there is a higher probability of people becoming skilled laborers than professionals.
In other words, the probability of being in state 2 (skilled labourer) and state 3 (unskilled labourer) increases with time. Therefore, the statement is incorrect.
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Find the curvature of r(t) = (3t2, In(t), t In(t)) at the point (3, 0, 0). K=
The curvature of the curve r(t) = (3[tex]t^2[/tex], ln(t), t ln(t)) at the point (3, 0, 0) is given by the expression [tex]\sqrt{333 + 324 ln(3)^2}[/tex] / [tex]\sqrt{36t^2 + 1/t^2 + (ln(t) + 1)^2})^3[/tex].
To find the curvature of the curve given by the vector function r(t) = (3[tex]t^2[/tex], ln(t), t ln(t)) at the point (3, 0, 0), we need to compute the curvature formula using the first and second derivatives of the curve.
The first step is to find the first derivative of r(t).
Taking the derivative of each component of the vector function, we have:
r'(t) = (6t, 1/t, ln(t) + t/t)
Next, we find the second derivative by taking the derivative of each component of r'(t):
r''(t) = (6, -1/[tex]t^2[/tex], 1/t + 1)
Now, we can calculate the curvature using the formula:
K = |r'(t) x r''(t)| / |r'(t)|^3
where x represents the cross product.
Substituting the values of r'(t) and r''(t) into the curvature formula, we have:
K = |(6t, 1/t, ln(t) + t/t) x (6, -1/[tex]t^2[/tex], 1/t + 1)| / |(6t, 1/t, ln(t) + t/t)|^3
Now, evaluate the cross product:
(6t, 1/t, ln(t) + t/t) x (6, -1/[tex]t^2[/tex], 1/t + 1) = (-t, 6t ln(t) + t - t, -6t)
Simplifying the cross product, we get:
(-t, 6t ln(t), -6t)
Next, calculate the magnitude of the cross product:
|(6t, 1/t, ln(t) + t/t) x (6, -1/[tex]t^2[/tex], 1/t + 1)| = [tex]\sqrt{t^2 + (6t ln(t))^2 + (-6t)^2}[/tex] = [tex]\sqrt{t^2 + 36t^2 ln(t)^2 + 36t^2}[/tex]
Now, calculate the magnitude of r'(t):
|(6t, 1/t, ln(t) + t/t)| = [tex]\sqrt{(6t)^2 + (1/t)^2 + (ln(t) + t/t)^2}[/tex] = [tex]\sqrt{36t^2 + 1/t^2 + (ln(t) + 1)^2}[/tex]
Finally, substitute the values into the curvature formula:
K = [tex]\sqrt{t^2 + 36t^2 ln(t)^2 + 36t^2}[/tex] / ([tex]\sqrt{36t^2 + 1/t^2 + (ln(t) + 1)^2})^3[/tex]
Since we are interested in the curvature at the point (3, 0, 0), substitute t = 3 into the equation to find the curvature K at that point.
K = [tex]\sqrt{(3)^2 + 36(3)^2 ln(3)^2 + 36(3)^2}[/tex] / [tex](\sqrt{36(3)^2 + 1/(3)^2 + (ln(3) + 1)^2})^3[/tex]
Simplifying the equation further, we get:
K = [tex]\sqrt{9 + 36(9) ln(3)^2 + 36(9)} / (\sqrt{36(9) + 1/(3)^2 + (ln(3) + 1)^2})^3[/tex]
K = [tex]\sqrt{9 + 324 ln(3)^2 + 324} / (\sqrt{324 + 1/9 + (ln(3) + 1)^2})^3[/tex]
K = [tex]\sqrt{333 + 324 ln(3)^2} / (\sqrt{325 + (ln(3) + 1)^2})^3[/tex]
Therefore, the curvature of the curve r(t) = (3[tex]t^2[/tex], ln(t), t ln(t)) at the point (3, 0, 0) is given by the expression:
[tex]\sqrt{333 + 324 ln(3)^2}[/tex] / [tex]\sqrt{36t^2 + 1/t^2 + (ln(t) + 1)^2})^3[/tex].
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A geometric sequence has Determine a and r so that the sequence has the formula an = a · a = Number r = Number a3 = 200, a4 = 2,000, a.pn-1. a5 = 20,000,.
For a geometric sequence given three terms: a3 = 200, a4 = 2,000, and a5 = 20,000. We need to determine the common ratio, r, and the first term, a, so that the sequence follows the formula an = a * rn-1.
To find the values of a and r, we can use the given terms of the sequence. Let's start with the equation for the fourth term, a4 = a * r^3 = 2,000. Similarly, we have a5 = a * r^4 = 20,000.
Dividing these two equations, we get (a5 / a4) = (a * r^4) / (a * r^3) = r. Therefore, we know that r = (a5 / a4). Now, let's substitute the value of r into the equation for the third term, a3 = a * r^2 = 200. We can rewrite this equation as a = (a3 / r^2).
Finally, we have found the values of a and r for the geometric sequence. a = (a3 / r^2) and r = (a5 / a4). Substituting the given values, we can calculate the specific values of a and r.
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Write the expression as a sum and/or difference of logarithms. Express powers as factors. 11/5 x² -X-6 In ,X> 3 11/5 x²-x-6 (x+7)3 (Simplify your answer. Type an exact answer. Use integers or fractions for any numbers in the expression.) (x+7)³
Given expression is 11/5 x² -x - 6 and we are required to write this expression as the sum and/or difference of logarithms and express powers as factors.
Expression:[tex]11/5 x² - x - 6[/tex]
The given expression can be rewritten as:
[tex]11/5 x² - 11/5 x + 11/5 x - 6On[/tex]
factoring out 11/5 we get:
[tex]11/5 (x² - x) + 11/5 x - 6[/tex]
The above expression can be further rewritten as follows:
11/5 (x(x-1)) + 11/5 x - 6
Simplifying the above expression we get:
[tex]11/5 x (x - 1) + 11/5 x - 30/5= 11/5 x (x - 1 + 1) - 30/5= 11/5 x² - 2.4[/tex]
Hence, the given expression can be expressed as the sum of logarithms in the form of
[tex]11/5 x² -x-6 = log (11/5 x(x-1)) - log (2.4)[/tex]
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Find the diagonalization of A 60 00 by finding an invertible matrix P and a diagonal matrix D such that PAP D. Check your work. (Enter each matrix in the form [[row 1], [row 21-1, where each row is a comma-separated list.) (D, P) -
Thus, we have successfully diagonalized matrix A. The diagonal matrix D is [[0, 0], [0, 6]], and the matrix P is [[1, 0], [0, 1]].
To find the diagonalization of matrix A = [[6, 0], [0, 0]], we need to find an invertible matrix P and a diagonal matrix D such that PAP⁽⁻¹⁾ = D.
Let's start by finding the eigenvalues of matrix A. The eigenvalues can be found by solving the equation det(A - λI) = 0, where I is the identity matrix.
A - λI = [[6, 0], [0, 0]] - [[λ, 0], [0, λ]] = [[6-λ, 0], [0, -λ]]
det(A - λI) = (6-λ)(-λ) = λ(λ-6) = 0
Setting λ(λ-6) = 0, we find two eigenvalues:
λ = 0 (with multiplicity 2) and λ = 6.
Next, we need to find the eigenvectors corresponding to each eigenvalue.
For λ = 0, we solve the equation (A - 0I)X = 0, where X is a vector.
(A - 0I)X = [[6, 0], [0, 0]]X = [0, 0]
From this, we see that the second component of the vector X can be any value, while the first component must be 0. Let's choose X1 = [1, 0].
For λ = 6, we solve the equation (A - 6I)X = 0.
(A - 6I)X = [[0, 0], [0, -6]]X = [0, 0]
From this, we see that the first component of the vector X can be any value, while the second component must be 0. Let's choose X2 = [0, 1].
Now we have the eigenvectors corresponding to each eigenvalue:
Eigenvector for λ = 0: X1 = [1, 0]
Eigenvector for λ = 6: X2 = [0, 1]
To form the matrix P, we take the eigenvectors X1 and X2 as its columns:
P = [[1, 0], [0, 1]]
The diagonal matrix D is formed by placing the eigenvalues along the diagonal:
D = [[0, 0], [0, 6]]
Now let's check the diagonalization: PAP⁽⁻¹⁾ = D.
PAP⁽⁻¹⁾= [[1, 0], [0, 1]] [[6, 0], [0, 0]] [[1, 0], [0, 1]]⁽⁻¹⁾ = [[0, 0], [0, 6]]
Thus, we have successfully diagonalized matrix A. The diagonal matrix D is [[0, 0], [0, 6]], and the matrix P is [[1, 0], [0, 1]].
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Show work to get full points. Sketch the solid E and region D. Explain which choice is correct and WHY. No credit will be given without justifications and explanations. •√16-²√16-x 1 L √√26-3²-3²- dz dy dx is equivalent to 10 x² + y² a. b. S T dz r dr de • √16-²1 SESS%² C. 1 d. r e. None of a d. dz r dr de dz r dr de dz dr de
The task involves sketching the solid E and region D, and then determining the correct choice among the given options for the integral expression. Therefore, the correct choice is b. ∫∫∫ √(16 - z^2) dz dr de, which represents the volume of the solid E.
To determine the correct choice among the options, let's analyze the given integral expression and its equivalents:
∫∫∫ √(16 - z^2) dz dy dx
This integral represents the volume of a solid E. The region D in the xy-plane is the projection of this solid. The equation of the region D is given by x^2 + y^2 ≤ 16.
Now, let's evaluate each option:
a. ∫∫∫ 10 x^2 + y^2 dz dr de
This option does not match the given integral expression, so it is incorrect.
b. ∫∫∫ √(16 - z^2) dz dr de
This option matches the given integral expression, so it is a possible choice.
c. ∫∫∫ 1 dz dr de
This option does not match the given integral expression, so it is incorrect.
d. ∫∫∫ r dz dr de
This option does not match the given integral expression, so it is incorrect.
e. None of the above
Since option b matches the given integral expression, it is the correct choice.
Therefore, the correct choice is b. ∫∫∫ √(16 - z^2) dz dr de, which represents the volume of the solid E.
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Prove that 3+√3 is irrational. (e) Explain why there are infinitely many to one numbers to rational numbers; i.e., to ever infinite irrational numbers.
3 + √3 is irrational. There are infinitely many one-to-one numbers to rational numbers to every infinite irrational number since there are infinitely many irrational numbers and only a countable number of rational numbers.
We know that an irrational number cannot be represented as a ratio of two integers. Let us assume that √3 + 3 is a rational number. Then, we can represent it as a ratio of two integers, a and b, such that b ≠ 0. Where a and b are coprime, we assume that a/b is in the lowest term.
√3 + 3 = a/b
On squaring both sides of the equation, we get;
3 + 2√3 + 3 = a²/b²
6 + 2√3 = a²/b²
2 + √3 = a²/6b²a²
= 2 × 6b² − 3 × b^4
The above equation tells us that a² is an even number since it is equal to twice some number and that, in turn, means that a must also be even. So, let a = 2k for some integer k. Then, 2 + √3 = 12k²/b², which implies that b is also even.
But this is impossible since a and b have no common factor, which is a contradiction. Therefore, our assumption that √3 + 3 is a rational number is incorrect, and √3 + 3 must be irrational.
Therefore, we have proved that 3 + √3 is irrational. There are infinitely many one-to-one numbers to rational numbers to every infinite irrational number since there are infinitely many irrational numbers and only a countable number of rational numbers. As a result, there is an infinite number of irrationals for every rational number.
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Consider the three individual elements 1, 1 and 2. If we consider these elements as a single unordered collection of distinct objects then we call it the set {1, 1, 2}. Because sets are unordered, this is the same as {2, 1, 1), and because we only collect distinct objects, this is also the same as {1, 2}. For example, let A = {1, 1, 1, 1}, B = {2, 4, 1, 2, 3} and C = {2, 1, 3, 4, 2, 4). a) If every element of the set S is also an element of the set T, then we say that S is a subset of T and write SCT. Which of the above sets are subsets of one another? AC B OBCA CC B BCC OCCA DACC Submit part Score: 0/4 Unanswered b) Sets are equal if they are subsets of each other. That is, we write S = T whenever both SCT and TC S. Which of the above sets are equal to each other? A = B B = C C = A
a) The sets which are subsets of one another are:{1, 1, 1, 1} ⊆ {1, 1, 1, 1}, {2, 4, 1, 2, 3} ⊈ {1, 1, 1, 1}, {2, 1, 3, 4, 2, 4} ⊈ {1, 1, 1, 1}, {1, 1, 1, 1} ⊆ {2, 4, 1, 2, 3}, {2, 1, 3, 4, 2, 4} ⊆ {2, 4, 1, 2, 3}, {2, 4, 1, 2, 3} ⊈ {2, 1, 3, 4, 2, 4}, {1, 1, 1, 1} ⊈ {2, 1, 3, 4, 2, 4} ; b) The sets which are equal to each other are : A = B, C = T
a) If every element of the set S is also an element of the set T, then we say that S is a subset of T and write SCT. For example, {1, 2} is a subset of {1, 1, 2}, we write {1, 2} ⊆ {1, 1, 2}.
Therefore, the sets which are subsets of one another are:{1, 1, 1, 1} ⊆ {1, 1, 1, 1}, {2, 4, 1, 2, 3} ⊈ {1, 1, 1, 1}, {2, 1, 3, 4, 2, 4} ⊈ {1, 1, 1, 1}, {1, 1, 1, 1} ⊆ {2, 4, 1, 2, 3}, {2, 1, 3, 4, 2, 4} ⊆ {2, 4, 1, 2, 3}, {2, 4, 1, 2, 3} ⊈ {2, 1, 3, 4, 2, 4}, {1, 1, 1, 1} ⊈ {2, 1, 3, 4, 2, 4}
b) Sets are equal if they are subsets of each other.
That is, we write S = T whenever both SCT and TC S.
Therefore, the sets which are equal to each other are :A = B, C = A
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ComfShirts Store sells a brand of black shirts for men at an approximate constant rate of 300 shirts every three months. ComfShirts' current buying policy is to order 300 pairs each time when an order is placed. It costs ComfShirts £30 to place an order. The annual holding cost rate is 20%. With the order quantity of 300, ComfShirts obtains the shirts at the lowest possible unit cost of £28 per shirt. Other quantity discounts offered by the manufacturer are given below. What is the minimum cost order quantity for the shirts? What are the annual savings of your inventory policy over the policy currently being used by ComfShirts? Price per shirt Order quantity 0-49 £36 50-99 £32 100-149 £30 150 or more £28
Thus, the annual savings of your inventory policy over the policy currently being used by ComfShirts is £600.Price per shirt Order quantity 0-49 £36 50-99 £32 100-149 £30 150 or more £28.
The answer to the question is given below:The given price schedule is a standard type of quantity discount. The cost per shirt decreases with the increase in the order quantity.The annual demand for the black shirts for men is:
Quarterly demand = 300 shirtsAnnual demand = 4 quarters x 300 shirts/quarter= 1200 shirtsThe ordering cost is given as £30/order.The holding cost rate is given as 20%.The lowest possible cost per unit is £28.According to the question, we need to calculate the minimum cost order quantity for the shirts.Since the quantity discount is only available for an order of 150 shirts or more, we will find the cost of ordering 150 shirts.
Cost of Ordering 150 ShirtsOrdering Cost = £30Cost of shirts= 150 x £28 = £4200Total Cost = £30 + £4200 = £4230Now, we will find the cost of ordering 149 shirts.
Cost of Ordering 149 ShirtsOrdering Cost = £30Cost of shirts= 149 x £30 = £4470Total Cost = £30 + £4470 = £4500
Since the cost of ordering 150 shirts is less than the cost of ordering 149 shirts, we will choose the order quantity of 150 shirts.
Therefore, the minimum cost order quantity for the shirts is 150 shirts.The annual savings of your inventory policy over the policy currently being used by ComfShirts is £600.The savings is calculated as:Cost Savings = (Quantity Discount x Annual Demand) - (Current Purchase Price x Annual Demand)Cost Savings = [(£36 - £28) x 1200] - (£30 x (1200/150)) = £600
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(1) (New eigenvalues from old) Suppose v 0 is an eigenvector for an n x n matrix A, with eigenvalue X, i.e.: Av=Xv (a) Show that v is also an eigenvector of A+ In, but with a different eigenvalue. What eigenvalue is it? (b) Show that v is also an eigenvector of A². With what eigenvalue? (c) Assuming that A is invertible, show that v is also an eigenvector of A-¹. With what eigenvalue? (hint: Start with Av=Xv. Multiply by something relevant on both sides.)
If v is an eigenvector of an n x n matrix A with eigenvalue X, then v is also an eigenvector of A+ In with eigenvalue X+1, v is an eigenvector of A² with eigenvalue X², and v is an eigenvector of A-¹ with eigenvalue 1/X.
(a) Let's start with Av = Xv. We want to show that v is an eigenvector of A+ In. Adding In (identity matrix of size n x n) to A, we get A+ Inv = (A+ In)v = Av + Inv = Xv + v = (X+1)v. Therefore, v is an eigenvector of A+ In with eigenvalue X+1.
(b) Next, we want to show that v is an eigenvector of A². We have Av = Xv from the given information. Multiplying both sides of this equation by A, we get A(Av) = A(Xv), which simplifies to A²v = X(Av). Since Av = Xv, we can substitute it back into the equation to get A²v = X(Xv) = X²v. Therefore, v is an eigenvector of A² with eigenvalue X².
(c) Assuming A is invertible, we can show that v is an eigenvector of A-¹. Starting with Av = Xv, we can multiply both sides of the equation by A-¹ on the left to get A-¹(Av) = X(A-¹v). The left side simplifies to v since A-¹A is the identity matrix. So we have v = X(A-¹v). Rearranging the equation, we get (1/X)v = A-¹v. Hence, v is an eigenvector of A-¹ with eigenvalue 1/X.
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write the sequence of natural numbers which leaves the remainder 3 on didvidng by 10
The sequence of natural numbers that leaves a remainder of 3 when divided by 10 is:
3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, ...
[tex]\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}[/tex]
♥️ [tex]\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}[/tex]
Identify the property that justifies each step asked about in the answer
Line1: 9(5+8x)
Line2: 9(8x+5)
Line3: 72x+45
Answer:
Step-by-step explanation:
Line 2: addition is commutative. a+b=b+a
Line 3: multiplication is distributive over addition. a(b+c)=ab+ac
how do i solve this problem ƒ(x) =
x +
The solution to the equation ƒ(x) = x + 5 is x = y - 5, where x represents the input value and y represents the output value of the function ƒ(x).
To solve the equation ƒ(x) = x + 5, we need to find the value of x that makes the equation true.
The equation is in the form of y = x + 5, where y represents the output or value of the function ƒ(x) for a given input x.
To solve for x, we need to isolate x on one side of the equation.
ƒ(x) = x + 5
Substituting y for ƒ(x), we have:
y = x + 5
Now, we want to solve for x. To isolate x, we subtract 5 from both sides of the equation:
y - 5 = x + 5 - 5
Simplifying, we get:
y - 5 = x
Therefore, the equation is equivalent to x = y - 5.
This equation tells us that the value of x is equal to the input value y minus 5.
So, if we have a specific value for y, we can find the corresponding value of x by subtracting 5 from y.
For example, if y = 10, we substitute it into the equation:
x = 10 - 5
x = 5
Thus, when y is 10, the corresponding value of x is 5.
Similarly, for any other value of y, we can find the corresponding value of x by subtracting 5 from y.
Therefore, the equation ƒ(x) = x + 5 can be solved by expressing the solution as x = y - 5, where x represents the input value and y represents the corresponding output value of the function ƒ(x).
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The question probable may be:
solve ƒ(x) = x + 5
Given g = 67 - 93 and f = 107 — 53, find |ğ + ƒ | and |ģ| + |ƒ |. Give EXACT answers. You do NOT have to simplify your radicals! X Ig+f1 = 21 |g|+|f1 = 22 Why are these two answers different? Calculator Check Answer
To find the values of |ğ + ƒ| and |ģ| + |ƒ|, we need to first evaluate the given expressions for g and f.
Given:
g = 67 - 93
f = 107 - 53
Evaluating the expressions:
g = -26
f = 54
Now, let's calculate the values of |ğ + ƒ| and |ģ| + |ƒ|.
|ğ + ƒ| = |-26 + 54| = |28| = 28
|ģ| + |ƒ| = |-26| + |54| = 26 + 54 = 80
Therefore, the exact values are:
|ğ + ƒ| = 28
|ģ| + |ƒ| = 80
Now, let's compare these results to the given equation X Ig+f1 = 21 |g|+|f1 = 22.
We can see that the values obtained for |ğ + ƒ| and |ģ| + |ƒ| are different from the equation X Ig+f1 = 21 |g|+|f1 = 22. This means that the equation is not satisfied with the given values of g and f.
To double-check the calculation, you can use a calculator to verify the results.
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Let z= f (x, y) = 3 x ² + 6x y -5 y ². Define Az = f(x+dx, y +dy)− f(x, y) and dz= f₁'(x, y )dx + f₂'(x, y )d y. Compute Az - dz.
To compute Az - dz, we first need to calculate the partial derivatives of the function f(x, y) = 3x² + 6xy - 5y².
Given function:
f(x, y) = 3x² + 6xy - 5y²
Partial derivative with respect to x (f₁'(x, y)):
f₁'(x, y) = ∂f/∂x = 6x + 6y
Partial derivative with respect to y (f₂'(x, y)):
f₂'(x, y) = ∂f/∂y = 6x - 10y
Now, let's calculate Az - dz:
Az = f(x + dx, y + dy) - f(x, y)
= [3(x + dx)² + 6(x + dx)(y + dy) - 5(y + dy)²] - [3x² + 6xy - 5y²]
= 3(x² + 2xdx + dx² + 2xydy + 2ydy + dy²) + 6(xdx + xdy + ydx + ydy) - 5(y² + 2ydy + dy²) - (3x² + 6xy - 5y²)
= 3x² + 6xdx + 3dx² + 6xydy + 6ydy + 3dy² + 6xdx + 6xdy + 6ydx + 6ydy - 5y² - 10ydy - 5dy² - 3x² - 6xy + 5y²
= 6xdx + 6xdy + 6ydx + 6ydy + 3dx² + 3dy² - 5dy² - 10ydy
dz = f₁'(x, y)dx + f₂'(x, y)dy
= (6x + 6y)dx + (6x - 10y)dy
Now, let's calculate Az - dz:
Az - dz = (6xdx + 6xdy + 6ydx + 6ydy + 3dx² + 3dy² - 5dy² - 10ydy) - ((6x + 6y)dx + (6x - 10y)dy)
= 6xdx + 6xdy + 6ydx + 6ydy + 3dx² + 3dy² - 5dy² - 10ydy - 6xdx - 6ydx - 6xdy + 10ydy
= (6xdx - 6xdx) + (6ydx - 6ydx) + (6ydy - 6ydy) + (6xdy + 6xdy) + (3dx² - 5dy²) + 10ydy
= 0 + 0 + 0 + 12xdy + 3dx² - 5dy² + 10ydy
= 12xdy + 3dx² - 5dy² + 10ydy
Therefore, Az - dz = 12xdy + 3dx² - 5dy² + 10ydy.
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how to change the chart style to style 42 (2nd column 6th row)?
To change the chart style to style 42 (2nd column 6th row), follow these steps:
1. Select the chart you want to modify.
2. Right-click on the chart, and a menu will appear.
3. From the menu, choose "Chart Type" or "Change Chart Type," depending on the version of the software you are using.
4. A dialog box or a sidebar will open with a gallery of chart types.
5. In the gallery, find the style labeled as "Style 42." The styles are usually represented by small preview images.
6. Click on the style to select it.
7. After selecting the style, the chart will automatically update to reflect the new style.
Note: The position of the style in the gallery may vary depending on the software version, so the specific position of the 2nd column 6th row may differ. However, the process remains the same.
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Determine whether the integral is divergent or convergent. This is an Improper Integration with u -sub If it is convergent, evaluate it. If not, state your answer as "DNE". 3 T. da [infinity] (2x - 3)²
The integral ∫[infinity] (2x - 3)² dx is divergent.
To determine if the integral is convergent or divergent, we need to evaluate the limits of integration. In this case, the lower limit is not specified, and the upper limit is infinity.
Let's perform the u-substitution to simplify the integral. Let u = 2x - 3, and we can rewrite the integral as:
∫[infinity] (2x - 3)² dx = ∫[infinity] u² (du/2)
Now we can proceed to evaluate the integral. Applying the power rule for integration, we have:
∫ u² (du/2) = (1/2) ∫ u² du = (1/2) * (u³/3) + C = u³/6 + C
Substituting back u = 2x - 3, we get:
u³/6 + C = (2x - 3)³/6 + C
Now, when we evaluate the integral from negative infinity to infinity, we essentially evaluate the limits of the function as x approaches infinity and negative infinity. Since the function (2x - 3)³/6 does not approach a finite value as x approaches infinity or negative infinity, the integral is divergent. Therefore, the answer is "DNE" (Does Not Exist).
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