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if alpha and beta are the solutions of a cos theta +b sin theta=c then show that cos (alpha - beta)=2c*c-(a*a+b*b)+a*a+b*b

if alpha and beta are the solutions of a cos theta +b sin theta=c then show that cos (alpha - beta)=2c*c-(a*a+b*b)+a*a+b*b

Grade:11

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago

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