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Mathematics 15 Online
OpenStudy (anonymous):

write as in a+bi ¨ e^pi x i

OpenStudy (across):

\[e^{i\pi}=\cos\pi+i\sin\pi\]SIMPLIFY!

OpenStudy (anonymous):

eulers formula.

OpenStudy (anonymous):

cos(i) + i sin (i)?

OpenStudy (across):

@kalemale, no.

OpenStudy (anonymous):

across wrote it exactly how it should be

OpenStudy (anonymous):

its the answer?

OpenStudy (anonymous):

my book says -1

OpenStudy (anonymous):

Across is right you just forgot to simplify

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