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If cos -1 x – cos -1 (y/2)=alpha, then 400(4x 2 – 4xy cos{alpha} + y 2 ) + 328 sin 2 {alpha} is equal to ‘asin 2 {alpha}’. Then find the value of ‘a’. Pls ans. with proper steps.

If cos-1x – cos-1(y/2)=alpha, then 400(4x2 – 4xy cos{alpha} + y2) + 328 sin2{alpha} is equal to ‘asin2{alpha}’. Then find the value of ‘a’.
Pls ans. with proper steps.

Grade:12

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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