I am trying to rewrite -i arctan ix = arctanh x + c as(adsbygoogle = window.adsbygoogle || []).push({});

e^it = cos t + i sin t

I am having trouble rewriting

sqrt[ 1 + i tan t / 1 - i tan t]

as

cos t + i sin t

Is this possible or did I do something wrong?

What do I multiply the sqrts by.

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# Homework Help: Help rewriting an equation

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