Asked by cam
verify the identity algebraically-
(5-5 cos x)(5+5 cos x)=25 (sin^x)
(5-5 cos x)(5+5 cos x)=25 (sin^x)
Answers
Answered by
Reiny
LS = 5(1 - cosx)(5)(1+cosx)
= 25(1 - cos^2 x)
= 25 sin^2 x
= RS
= 25(1 - cos^2 x)
= 25 sin^2 x
= RS
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