If S = i^n + i^{-n}, where i=\sqrt{-1} and n is an integer, then t | Filo
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Class 11

Math

Co-ordinate Geometry

Straight Lines

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If , where and n is an integer, then the total number of possible distinct values for S is:

  1. 1
  2. 2
  3. 3
  4. 4
  5. more than 4
Correct Answer: Option(c)
Solution:
Distinct possible values for s are -2, 0, 2.
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