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If sin 4 x + sin 2 x = 1, then the value of cos 2 x + cos 4 x is 1 – 2cos 6 x 1 – 2sin 6 x 1 0

If sin4x + sin2x = 1, then the value of cos2x + cos4x is
  1. 1 – 2cos6x
  2. 1 – 2sin6x
  3. 1
  4. 0

Grade:11

1 Answers

SJ
askIITians Faculty 97 Points
2 months ago
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