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Question

If i to the power of z equals e times left parenthesis c o s theta plus i s i n theta right parenthesis and principal value be considered then value of z is-

  1. pi over 2 open parentheses theta minus i to the power of i close parentheses
  2. 2 over pi left parenthesis theta minus straight i right parenthesis
  3. 2 pi left parenthesis theta minus i right parenthesis
  4. None of these

The correct answer is: 2 over pi left parenthesis theta minus straight i right parenthesis

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