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Question: complex analysis q2 consider arccos 2 defined as arccos z...

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Complex Analysis Q.2 Consider arccos 2 defined as arccos z log ivi 22 Note: Re VI-22) 0 Note: argument of 2 i 1 22 is between 0 and 2T a. Find 20 such that arccos 20 is not defined b. Does arccos z hen z ar is real match the regular arccosa Why yes or why not? Please be clear, I asked this and could not understand the last answer. Thanks!

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