SOLUTION: find v such that f(u, v) is analytic at u = Sin(x).Cosh(y)? [Here Cosh(y) means Cosine hyperbolic function on y]

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Question 1172389: find v such that f(u, v) is analytic at u = Sin(x).Cosh(y)?
[Here Cosh(y) means Cosine hyperbolic function on y]
Answer by ikleyn(52848) About Me  (Show Source):
You can put this solution on YOUR website!
.

duplicate.

It was solved yesterday under this link

https://www.algebra.com/algebra/homework/complex/Complex_Numbers.faq.question.1172367.html

https://www.algebra.com/algebra/homework/complex/Complex_Numbers.faq.question.1172367.html



Could you explain me please for WHAT REASON do you post this duplicate problem again ?


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By the way, the problem formulation is not correct in your post.

The correct formulation is THIS: 

    if f = u + iv  is an analytic function and u = Sin(x)*Cosh(y), then find v.


It is  VERY  serious  fault,  which shows that the person who created this  "problem"  DOES  NOT  KNOW  the subject.