Questions:1 part b question 31 part d 1) a) Find the zeros and their order for the following functions.1) Z³ cos z 2) COS(23) 3) Coszt sinh (2)b) Find the order of Z=0 for the following functions:251) 142-e22) 6 sin(z)+29-6233) (ez²-1-2²) Sin³zc) If zo is a zero of order n of an analytic function f(z) andit is zero of order me of an analytic function g(z), what can besaid about zo for the following functions:1) f(z)+g(z)2) (2)કુ(૨)112)3) giz)d) Prove: If z = zo is a zero of order n of f(z), then it is zeroof order 2n of(f(z))2

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As asked we shall solve only questions: 1 part b question 3 and 1 part d.We have to find the order…

d) Prove: If z = zo is a zero of order n of flz), then it is zero. of order 2n of (f(z))²