If TanA+SinA=m and, TanA-SinA=n Then, prove that:- m2-n2=4 under root

1.	If TanA+SinA=m and, TanA-SinA=n Then, prove that:- m2-n2=4 under root mn
Answer» Squaring both the equation and then subtract each other with as LHS with LHS and RHS with RHS

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