HELP HELP(complex no)

1.If z=re^itheta,then modulus of e^iz=?

Ans.e^{-rsin theta}

2 Answers

e^iz = e^{i(rcosÎ¸+irsinÎ¸)} = e^{(ircosÎ¸-rsinÎ¸)}

e^ircosÎ¸e^-rsinÎ¸

Hence the answer..

Thanks ,ur awesome.

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