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Question

Proove:
1sinθ1+sinθ=(secθtanθ)2

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Solution

(1sinθ1+sinθ×1+sinθ1sinθ)
=(1sinθ)21sin2θ=(1sinθ)2cos2θ
=(secθtanθ)2

1165167_1228119_ans_fe73e25e56f94d1184cb28b639e82013.jpg

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