Prove that :, Tan^4 theta + tan^2 theta = sec^4 theta - sec^2 theta.

1.	Prove that :, Tan^4 theta + tan^2 theta = sec^4 theta - sec^2 theta.
Answer» LHS:-Tan^4 theta +Tan^2 thetaTan^2 theta (Tan^2 theta +1)Tan^2 theta Sec^2 thetaRHS:-Sec^4 theta - Sec^2 thetaSec^2 theta (Sec^2 theta -1)Sec^2 theta Tan^2 theta.

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