SOLUTION: I need to prove this identity tan^2theta-sin^2theta = tan^2thetasin^2theta

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Question 714760: I need to prove this identity
tan^2theta-sin^2theta = tan^2thetasin^2theta

Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
On the left side we can say (sin^2)/(cos^2)-sin^2
=sin^2/cos^2-(sin^2*cos^2)/cos^2
=(sin^2 *(1-cos^2))/cos^2
=

To finish this, use in the form of , and perform the substitution into that last step above.

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