# Complex Variables - Analytic Function help needed

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• December 24th 2011, 08:38 AM
flaming
Complex Variables - Analytic Function help needed
a) Where is the function
$f(z)=e^{{x^2} - {y^2}}[\cos(2xy) + i \sin(2xy)]$ analytic?

b) Find $f'(z)$ http://www.mathhelpforum.com/math-he...AAAElFTkSuQmCC and its derivative
• December 24th 2011, 08:44 AM
girdav
Re: Complex Variables - Analytic Function help needed
Did you look at Cauchy-Riemann equations?