Question

1 _ cos A / 1 + COS A = ( COT A _ COSEC A ) ^2​

Answer 1

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Answer 2

Answer:

R.H.S= (cosec A-cotA)²

        =(1/sinA - cosA/sinA)²

        =((1-cosA)/sinA)²

        =(1-cosA)²)/sin²A

        =(1-cosA)²/(1-cos²A)

        =(1-cosA)²/(1-cosA)(1+cosA)

        =(1-cosA)/(1+cosA)