Math, asked by shubhi6942, 1 year ago

cos theta + sin 2 theta + cos 3 theta = 0 find theta​

Answers

Answered by vaibhavimaurya
0

please find the solution in the attachment

Attachments:
Answered by aman240292
0

Identities used:

Sin2x=2sinx cosx

cos3x=4cos^3x-3cos x

sin^2x+cos^2x=1

Attachments:
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