answer the question and if you follow me i will mark you as a brainlist
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Step-by-step explanation:
Hope this helps........
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Step-by-step explanation:
LHS=sin Ф /(1+cosФ) + (1+cosФ)/sinФ
= 1/sinФ(1+cos Ф) { sin²Ф+(1+cosФ)² }
= 1/sinФ(1+cos Ф) { sin²Ф +cos²Ф+1+2cosФ }
=1/sinФ(1+cos Ф) { 2+2cosФ)
=1/sinФ(1+cos Ф)*2(1+cos Ф)
=2/sinФ
=2 cosecФ =RHS
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