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Question: Answered & Verified by Expert
If $z=\frac{-1-i \sqrt{3}}{2}$, then $\sum_{k=1}^{2022}\left(z^k+\frac{1}{z^k}\right)^2=$
MathematicsComplex NumberTS EAMCETTS EAMCET 2022 (20 Jul Shift 2)
Options:
  • A 0
  • B 2022
  • C 4044
  • D 1011
Solution:
2560 Upvotes Verified Answer
The correct answer is: 4044
No solution. Refer to answer key.

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