sinA.tanA/1-cosA=1+secA
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(sinA×sinA/cosA)/ 1-cosA
=sin^2A/cosA(1-cosA)
=(1-cosA)(1+cos)/cosA (1-cosA)
=1+cosA/cosA
=1+secA Ans
=sin^2A/cosA(1-cosA)
=(1-cosA)(1+cos)/cosA (1-cosA)
=1+cosA/cosA
=1+secA Ans
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