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# I don't get euler's relation!!!!!!!!!!

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How is e^x = sin(x) + cos(x) if sin(1)+cos(1) =/ e^1

Guest May 23, 2017
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#1
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I don't exactly know what you are trying to derive !!?? But we have:

Cos(Pi) = -1 and Sin(pi) =0, hence:

Cos(pi) + i Sin(Pi) = -1, so that: e^(i*Pi) = -1

Guest May 23, 2017
#2
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There is a mistake...

Correct one : $$e^{ix}=\cos x + i\sin x$$

MaxWong  May 25, 2017

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