Question

In: Advanced Math

1. Let R be the rectangle formed by going along line segments from 1 to i...

1. Let R be the rectangle formed by going along line segments from 1 to i to -1 to -i and back to 1. If f(z)=1/(z-5i) then the integral around R of f(z) has value of?

2. Let C be the circle of radius fifty centered at the origin with positive orientation. Then the integral around C of f(z) = 1/(z-4) has value of?

3. Let C be the circle of radius fifty centered at the origin with positive orientation

of F(z)=[1/(z-i)] + [1/(z-2)] then the integral around C of F(z) has value of?

4. Let C be the circle of radius six centered at the origin with positive orientation.

If G(z) = [1/(z-2)] + [1/(z-8)] then the integral around C of G(z) has value of?

5. The integral of f(z) = 1/[(z-5)(z-8)] around the circle of radius one centered at z=1 with positive orientation has value zero? True or false?

Solutions

Expert Solution

please give me rating


Related Solutions

Let R be a commutative domain, and let I be a prime ideal of R. (i)...
Let R be a commutative domain, and let I be a prime ideal of R. (i) Show that S defined as R \ I (the complement of I in R) is multiplicatively closed. (ii) By (i), we can construct the ring R1 = S-1R, as in the course. Let D = R / I. Show that the ideal of R1 generated by I, that is, IR1, is maximal, and R1 / I1R is isomorphic to the field of fractions of...
9.2.6 Exercise. Let R = Z and let I be the ideal 12Z of R. (i)...
9.2.6 Exercise. Let R = Z and let I be the ideal 12Z of R. (i) List explicitly all the ideals A of R with I ⊆ A. (ii) Write out all the elements of R/I (these are cosets). (iii) List explicitly the set of all ideals B of R/I (these are sets of cosets). (iv) Let π: R → R/I be the natural projection. For each ideal A of R such that I ⊆ A, write out π(A) explicitly...
Let A∈Mn(R)"> A ∈ M n ( R ) A∈Mn(R) such that I+A"> I + A I+A is invertible. Suppose that
Let A∈Mn(R)A∈Mn(R) such that I+AI+A is invertible. Suppose thatB=(I−A)(I+A)−1B=(I−A)(I+A)−1(a) Show that B=(I+A)−1(I−A)B=(I+A)−1(I−A) (b) Show that I+BI+B is invertible and express AA in terms of BB.
Let R be the real line with the Euclidean topology. (a) Prove that R has a...
Let R be the real line with the Euclidean topology. (a) Prove that R has a countable base for its topology. (b) Prove that every open cover of R has a countable subcover.
Define a sequence from R as follows. Fix r > 1. Let a1 = 1 and...
Define a sequence from R as follows. Fix r > 1. Let a1 = 1 and define recursively, an+1 = (1/r) (an + r + 1). Show, by induction, that (an) is increasing and bounded above by (r+1)/(r−1) . Does the sequence converge?
Let R and S be commutative rings with unity. (a) Let I be an ideal of...
Let R and S be commutative rings with unity. (a) Let I be an ideal of R and let J be an ideal of S. Prove that I × J = {(a, b) | a ∈ I, b ∈ J} is an ideal of R × S. (b) (Harder!) Let L be any ideal of R × S. Prove that there exists an ideal I of R and an ideal J of S such that L = I × J.
Let R be a commutative ring with unity. If I is a prime ideal of R,...
Let R be a commutative ring with unity. If I is a prime ideal of R, prove that I[x] is a prime ideal of R[x].
let i be an interval in r, when is f said to be concave on i
let i be an interval in r, when is f said to be concave on i
Let A = R x R, and let a relation S be defined as: “(x​1,​ y​1)​...
Let A = R x R, and let a relation S be defined as: “(x​1,​ y​1)​ S (x​2,​ y​2)​ ⬄ points (x​1,​ y​1)​ and (x​2,​ y​2)​are 5 units apart.” Determine whether S is reflexive, symmetric, or transitive. If the answer is “yes,” give a justification (full proof is not needed); if the answer is “no” you ​must​ give a counterexample.
Let C be the closed path that travels from (0, 0) to (1, 1) along y...
Let C be the closed path that travels from (0, 0) to (1, 1) along y = x^2 , then from (1, 1) to (0, 2) along y = 2 − x^ 2 , and finally in a straight line from (0, 2) to (0, 0). Evaluate Z C e ^3−x √ 3 − x ) dx + (5x − y √ y^2 + 2) dy
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT