Math, asked by bharat92134, 1 year ago

what is the value of cos 2 theta

Answers

Answered by vishnuvardhan232

0

Answer:

cos square theta minus sin square theta

Answered by lalit99992

0

Step-by-step explanation:

cos 2 theta=cos^2 theta-sin^2 theta

=2cos^2 theta-1

=1- 2sin^2 theta

=1-tan^2 theta/1+tan^2 theta

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