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Complex Integral With Cosine

Calculus Level 2

Compute

\[\int_{C} \frac{\cos(z)}{z^3} \, dz,\]

where \(C\) is the unit circle centered at 0 with positive (counterclockwise) orientation.

\[-2\pi i\] \[-\pi i\] \[\pi i\] \[2\pi i\]

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by Sameer Kailasa

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