Prove That:- (sin A)^4 - (sin A)^2 = (tan A)^2 + (tan A)^4 Please solve .... Share with your friends Share 0 Varun.Rawat answered this Refer the following link : https://www.meritnation.com/ask-answer/question/prove-that-sin4a-sin2a-tan4-tan2a/introduction-to-trigonometry/2953106 0 View Full Answer