f(x1, x2) = -2（x1）(x2)+ (x1)^3 + (x2)^3 a) Find a maximum in the region where x1...
f(x1, x2) = -2（x1）(x2)+ (x1)^3 + (x2)^3
a) Find a maximum in the region where x1 ≤ 1 and x2 ≤ 1 (Hint: remember to check what happens when x1 = 1 and x2 = 1)
b) Now consider (x1, x2) ∈ R 2 , that is, the entire two-dimensional space where x1 and x2 are in[−∞,+∞]. Is there a maximum?
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f(x1, x2) = -2（x1）(x2)+ (x1)^3 + (x2)^3
a) Find a maximum in the region where x1...
(Unconstrained Optimization-Two Variables) Consider the function: f(x1, x2) = 4x1x2 − (x1)2x2 − x1(x2)2 Find a...
(Unconstrained Optimization-Two Variables) Consider the function: f(x1, x2) = 4x1x2 − (x1)2x2 − x1(x2)2 Find a local maximum. Note that you should find 4 points that satisfy First Order Condition for maximization, but only one of them satisfies Second Order Condition for maximization.
Find the maximum value of Z= 4X1 + 6X2 where X1 , X2 ≥ 0 and...
Find the maximum value of Z= 4X1 + 6X2 where X1 , X2 ≥ 0 and subject to the following constraints. - X1+ X2 ≤ 11 X1+ X2 ≤ 27 2X1+5 X2 ≤ 90
3. Two solutions of the following linear equation system are x1, X2, where Xi = (1,1,-3,1), x2-x1...
3. Two solutions of the following linear equation system are x1, X2, where Xi = (1,1,-3,1), x2-x1 + xd xd that makes cTx2 - cTx1 - 1, where c [1 1 2 1] Find every Ax=11 2 2 3 |x=b
3. Two solutions of the following linear equation system are x1, X2, where Xi = (1,1,-3,1), x2-x1 + xd xd that makes cTx2 - cTx1 - 1, where c [1 1 2 1] Find every Ax=11 2 2 3 |x=b
8. [10 points) a. Consider the function f (x1, x2) = x1 - xż. Investigate convexity...
8. [10 points) a. Consider the function f (x1, x2) = x1 - xż. Investigate convexity of this function in R2. What can you say about minimum and maximum values of the function and its behavior at the origin. b. Consider the function f(x1, x2) = x1+xz over the domain C = = {x € R2 : || xt||1 < 1}. Find the maximum of the function f over C.
1. Find the absolute maximum and minimum values of f(r,y) = x2+y2+5y on the disc {(x,...
1. Find the absolute maximum and minimum values of f(r,y) = x2+y2+5y on the disc {(x, y) | x2+y2 < 4}, and identify the points where these values are attained 2. Find the absolute maximum and minimum values of f(x, y) = x3 - 3x - y* + 12y on the closed region bounded by the quadrilateral with vertices at (0,0), (2,2), (2,3), (0,3), and identify the points where these values are attained. 3. A rectangular box is to have...
1. Consider the utility function: u(x1,x2) = x1 + x2. Find the corresponding Hicksian demand function....
1. Consider the utility function: u(x1,x2) = x1 + x2. Find the corresponding Hicksian demand function. 2. For each of the three utility functions below, find the substitution effect, the income effect, and the total effect that result when prices change from p =(2, 1) to p' = (2,4). Assume the consumer has income I = 20. (a) Before doing any calculation, make an educated guess about the relative magnitude of the three substitution effects and the three income effects...
、 | | xo = 0 Xi = 2 x2 = 4 f(x) = 2 f(x1)...
、
| | xo = 0 Xi = 2 x2 = 4 f(x) = 2 f(x1) = 6 f(x2) – 10 Consider the differential equation dy – Ax+ 4 where A is a constant. dx Let y = f(x) be the particular solution to the differential equation with the initial condition f(0) = 2. Euler's method, starting at x = 0) with a step size of 2, is used to approximate f(4). Steps from this approximation are shown in the...
Let X1 and X2 be two discrete random variables, where X1 can attain values 1, 2,...
Let X1 and X2 be two discrete random variables, where X1 can
attain values 1, 2, and 3, and X2 can attain values 2, 3 and 4. The
joint probability mass function of these two random variables are
given in the table below: X2 X1 2 3 4 1 0.05 0.04 0.06 2 0.1 0.15
0.2 3 0.2 0.1 0.1 a. Find the marginal probability mass functions
fX1 (s) and fX2 (t). b. What is the expected values of X1...
1. Consider the utility function: u(x1,x2) = x1 + x2. Find the corresponding Hicksian demand function....
1. Consider the utility function: u(x1,x2) = x1 + x2. Find the corresponding Hicksian demand function. 2. For each of the three utility functions below, find the substitution effect, the income effect, and the total effect that result when prices change from p = (2,1) to p' = (2,4). Assume the consumer has income I = 20. (a) Before doing any calculation, make an educated guess about the relative magnitude of the three substitution effects and the three income effects...
Theoretical Part 1. Consider the problem of computing f(x)dx, where f(x) could be any function. Letting X1, X2 IID...
Theoretical Part 1. Consider the problem of computing f(x)dx, where f(x) could be any function. Letting X1, X2 IID ~U[0, 2, define three very simple estimators: ff(0)f(2), i2= f(X1)f(X2), fi3 = f(X1/2) + f((X2+2)/2) (a) (5 points) Is ft an unbiased estimator of u? (b) (5 points) Is i2 an unbiased estimator of ? (c) (5 points) Is 3 an unbiased estimator of ? (d) (10 points) Compute the variance of each of the three estimator when f(x) x
Theoretical...
3. Two solutions of the following linear equation system are x1, X2, where Xi = (1,1,-3,1), x2-x1 + xd xd that makes cTx2 - cTx1 - 1, where c [1 1 2 1] Find every Ax=11 2 2 3 |x=b
3. Two solutions of the following linear equation system are x1, X2, where Xi = (1,1,-3,1), x2-x1 + xd xd that makes cTx2 - cTx1 - 1, where c [1 1 2 1] Find every Ax=11 2 2 3 |x=b
8. [10 points) a. Consider the function f (x1, x2) = x1 - xż. Investigate convexity of this function in R2. What can you say about minimum and maximum values of the function and its behavior at the origin. b. Consider the function f(x1, x2) = x1+xz over the domain C = = {x € R2 : || xt||1 < 1}. Find the maximum of the function f over C.
1. Find the absolute maximum and minimum values of f(r,y) = x2+y2+5y on the disc {(x, y) | x2+y2 < 4}, and identify the points where these values are attained 2. Find the absolute maximum and minimum values of f(x, y) = x3 - 3x - y* + 12y on the closed region bounded by the quadrilateral with vertices at (0,0), (2,2), (2,3), (0,3), and identify the points where these values are attained. 3. A rectangular box is to have...
1. Consider the utility function: u(x1,x2) = x1 + x2. Find the corresponding Hicksian demand function. 2. For each of the three utility functions below, find the substitution effect, the income effect, and the total effect that result when prices change from p =(2, 1) to p' = (2,4). Assume the consumer has income I = 20. (a) Before doing any calculation, make an educated guess about the relative magnitude of the three substitution effects and the three income effects...
、
| | xo = 0 Xi = 2 x2 = 4 f(x) = 2 f(x1) = 6 f(x2) – 10 Consider the differential equation dy – Ax+ 4 where A is a constant. dx Let y = f(x) be the particular solution to the differential equation with the initial condition f(0) = 2. Euler's method, starting at x = 0) with a step size of 2, is used to approximate f(4). Steps from this approximation are shown in the...
Let X1 and X2 be two discrete random variables, where X1 can
attain values 1, 2, and 3, and X2 can attain values 2, 3 and 4. The
joint probability mass function of these two random variables are
given in the table below: X2 X1 2 3 4 1 0.05 0.04 0.06 2 0.1 0.15
0.2 3 0.2 0.1 0.1 a. Find the marginal probability mass functions
fX1 (s) and fX2 (t). b. What is the expected values of X1...
1. Consider the utility function: u(x1,x2) = x1 + x2. Find the corresponding Hicksian demand function. 2. For each of the three utility functions below, find the substitution effect, the income effect, and the total effect that result when prices change from p = (2,1) to p' = (2,4). Assume the consumer has income I = 20. (a) Before doing any calculation, make an educated guess about the relative magnitude of the three substitution effects and the three income effects...
Theoretical Part 1. Consider the problem of computing f(x)dx, where f(x) could be any function. Letting X1, X2 IID ~U[0, 2, define three very simple estimators: ff(0)f(2), i2= f(X1)f(X2), fi3 = f(X1/2) + f((X2+2)/2) (a) (5 points) Is ft an unbiased estimator of u? (b) (5 points) Is i2 an unbiased estimator of ? (c) (5 points) Is 3 an unbiased estimator of ? (d) (10 points) Compute the variance of each of the three estimator when f(x) x
Theoretical...
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