Prove that sin2A/1-cos2A =cotA
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LHS
2sinA.cosA/1-1+2sin^2A
2sinA.cosA/2sin^2A
CosA/sinA
CotA = RHS
Formula used Sin2A=2sinA.cosA
Cos2A= 1-2sin^2A
2sinA.cosA/1-1+2sin^2A
2sinA.cosA/2sin^2A
CosA/sinA
CotA = RHS
Formula used Sin2A=2sinA.cosA
Cos2A= 1-2sin^2A
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