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z is a complex number such that z+(1/z)=2cos5 , 5 is in degree then the value of z 1200 +(1/z 1200) +1 is equal to 1 -1 3 (1/2) +1 0

z is a complex number such that z+(1/z)=2cos5 , 5 is in degree then the value of z1200 +(1/z1200) +1 is equal to
  1. 1
  2. -1
  3. 3(1/2)+1
  4. 0

Grade:12th pass

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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