Math, asked by bhagyasreekumar, 11 months ago

what is the value of cos 2x

Answers

Answered by Anonymous

7

cos²x-sin²x

formula

hope this is helpful

Answered by piyushmalikJatt

10

Answer:

cos2x = cos²x - sin²x = 2cos²x - 1 = 1 - 2sin²x......

may this help u

Step-by-step explanation:

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