Math, asked by Logman, 11 months ago

If CosAlpha + cos beta =a,sin alpha+ sin beta =b and alpha-beta=2theta then cos 3theta/cos theta=a2+b2-3​

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Answered by sahildhande987
6

see the attachment mate....!!!

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LOL##

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Answered by Anonymous
4

Answer:

Hey mate your answer is here

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