Question

prove that cos square theta upon sintheta-cosec theta +sin theta =0

Answer 1

Cosec theta=1/sin theta
Cos 2 theta/sin theta-1/sin theta+sin theta
Take lcm
Cos2 theta /sin theta-1/sin theta+sin2 theta/sin theta
Cos2 theta-1+sin2 theta/sin theta
(Cos2 theta +sin2 theta=1)
1-1=0
Hence proved

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Answer 2

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