A.  (a2-b2)sin x/(a2+b2)(1+cos2 x)+4ab cos x

B.  sin x/(a2+b2)cos2 x

C.  sin x/(1+cos2x)+4ab cos x

D.  none

Correct Answer :
(a2-b2)sin x/(a2+b2)(1+cos2 x)+4ab cos x
Explanation :
No Explanation available for this question
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