# Branch of logarithmic equation and derivative question

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Determine a branch of log that is analytic at z = -1, and find its derivative there.

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Determine a branch of log that is analytic at z = -1, and find its derivative there.

A branch cut is a curve (with ends either open, closed, half-open) in the complex ...

#### Solution Summary

The branch of logarithmic equations and derivative questions are provided.

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