Math, asked by Uhbuhs, 1 year ago

cos 3 theta=cos (2theta + theta ) Prove that....plz quickly...

Answers

Answered by aafi05

1

Answer:

Sorry mate I don't know.

Answered by NDbrainly

0

Answer:

We know that,

3 theta = 2theta + theta

=> cos (3theta) = cos (2theta + theta)

Please mark me as a brainliest

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