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What is the proof of Euler s identity?
I don t understand the online proof. Could you explain it to me with my knowledge being up to derivatives in calculus ab?
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- ?Lv 76 years ago
We can write for any angle x
e^(ix) = cosx + i sinx.
For x = pi, we have cos(pi) = -1, sin(pi) = 0, so
e^(pi i) = -1
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