construct an analytic function f(z) whose real part is e^x cos y


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Question Number 57001 by nisha sinah last updated on 28/Mar/19

$c o n s t r u c t a n a n a l y t i c f u n c t i o n f (z) w h o s e r e a l p a r t i s e^{x} \cos y$
Commented by 121194 last updated on 28/Mar/19

$f (z) = e^{z}$ $e^{z} = e^{x + i y} = e^{x} \cos y + {i e}^{x} \sin y$
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