Math, asked by sanskar8880, 11 months ago

cos3theta + 2 cos theta=0​

Answers

Answered by Anonymous
4

Answer:

Cos 3 theta +cos theta _2 cos theta then 4 cos cube theta _ 3cos theta+cos theta_2 cos theta =0, 4cos cube theta_ 4cos theta =0 then 4cos cube theta =4 cos theta that os cos square theta =1 so cos theta = 1 there fore theta =0 hence proved

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