
4) Find the function, f (k,p), such that n” Vp, nc N k=1 Bonus (up to...
The production function is f(K,L)=K(1/2)+L(1/2) for questions 4, 5, and bonus. 4. Does this production function exhibit decreasing, constant, or increasing returns to scale. 5. Find the rate of technical substitution. Bonus. Find the elasticity of substitution (σ) for this production function.
Please answer problem 4, thank you.
2. The polynomial p of degree n that interpolates a given function f at n+1 prescribed nodes is uniquely defined. Hence, there is a mapping f -> p. Denote this mapping by L and show that rl Show that L is linear; that is, 3. Prove that the algorithm for computing the coefficients ci in the Newton form of the interpolating polynomial involves n long operations (multiplications and divisions 4. Refer to Problem 2,...
4. Find k for which the function given by f(x, y) = P(X = x, Y = y) = kxy, for x = 1, 2, 3; y = 1,2,3, can serve as a joint probability distribution. [2 points) Also, determine the following: • F(2, 2). [2 points) • the marginal distribution of X; [2 points) • the marginal distribution of Y; [2 points] • P(X > 1, Y < 3). (2 points] • P(X = 1, Y <3). [2 points)
G. Shorter Questions Relating to Automorphisms and Galois Groups Let F be a field, and K a finite extension of F. Suppose a, b E K. Prove parts 1-3: 1 If an automorphism h of K fixes Fand a, then h fixes F(a). 3 Aside from the identity function, there are no a-fixing automorphisms of a(). [HINT: Note that aV2 contains only real numbers.] 4 Explain why the conclusion of part 3 does not contradict Theorem 1.
G. Shorter Questions...
Therom 1.8.2
n choose k = (n choose n-k)
n choose k = (n-1 choose K) + (n-1 choose K-1)
2n = summation of (n choose i )
please use the induction method
(a) (10 pts) Show that the following equality holds: n +1 + 2 Hint: If you proceed by induction, you might want to use Theorem 1.8.2. If you search for a combinatorial proof, consider the set X - (i,j, k): 0 S i,j< k< n) (b) (10...
4. Let f be a differentiable function defined on (0, 1) whose derivative is f'(c) = 1 - cos (+) [Note that we can confidently say such an f exists by the FTC.) Prove that f is strictly increasing on (0,1). 5. Let f be defined on [0, 1] by the following formula: 1 x = 1/n (n € N) 0, otherwise (a) Prove that f has an infinite number of discontinuities in [0,1]. (b) Prove that f is nonetheless...
4. Consider the following function in R" f(Fi, n)=-1) k-1 Find the critical point of this function and show whether it is a local minimum, a local maximum, or neither 5. By examining the Hessian matrix, show that if f(x,y, ) has a local minimum at then g(z, y,) -f(x,y, ) must have a local maximum at that point. Likewise, show that if f has a local maximum, then g must have a local minimum at that point. (ro, yo,...
Q3 (Prove that P∞ k=1 1/kr < ∞ if r > 1) . Let
f : (0,∞) → R be a twice differentiable function with f ''(x) ≥ 0
for all x ∈ (0,∞).
(a) Show that f '(k) ≤ f(k + 1) − f(k) ≤ f '(k + 1) for all k ∈
N.
(b) Use (a), show that Xn−1 k=1 f '(k) ≤ f(n) − f(1) ≤ Xn k=2 f
'(k).
(c) Let r > 1. By finding...
Can
someone show me how to do question 2a and all 3 and 4?
I
tried ratio test for 2a, but if x = 0, rhe proof doesn't
work.
Thanks a lot.
2. Prove the following. (a) The series o converges for all 3 € R. (b) For n e N and k € {2,..., n}, the binomial coefficient (7) satisfies *)-(-5) (-)-(---) (c) For x > 0, the sequence (1 + 5)" is monotone increasing and bounded above by...
Q1 (4 points) Assume that f: NXN N is a function defined by f(n, k) = 2n+l(4k + 3). Is an injective function? Justify your answer. + Drag and drop your images or click to browse...