(sin e+1+ cose)(sine-1+ cos 0). sece.cosec.e=2
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Answer:
L.H.S. = sin2 A + (1 + cos A)2/(1 + cos A) sin A
= (sin2 A + 1 + cos2 A + 2 cos A)/(1 + cos A) sin A
= 1 + 1 + 2 cos A/(1 + cos A)sin A
= 2 cosec A = R.H.S.
Hence proved.
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