prove that this equation
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I think it is a hopeful answer Please mark me as brainist
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Cosec^2(90°-α)-tan^2α=cos^2(90°-α)+cos^2α
sec^2α-sec^2α-1=sin^2α+cos^2α
1=1
therefore, L.H.S=R.H.S
sec^2α-sec^2α-1=sin^2α+cos^2α
1=1
therefore, L.H.S=R.H.S
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