So with Euler identity I used $2 \pi(\tau)$ instead and got $e^{2\pi i} = 1$, and took natural logarithm $2\pi i= 0$? But is see online the answer is $6.28....i$.
2026-03-30 10:43:09.1774867389
If $e^{2\pi i}=1$ then is $2\pi i=0$?
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