Math, asked by subhashchander416, 1 year ago

Prove cos theta + cos 3 theta + cos 5 theta + cos 7 theta =4 cos theta cos 2theta cos 4 theta

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Answered by tigerisroyal123
4

Answer

please upload full solution

Answered by Anonymous
0

plz anyone gives the solution of this sum ........ it's to urgent .. request .....

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