SOLUTION: Prove the identity. (Hint: factor the left side first) {{{ 2sec^2(theta)tan^2(theta)-tan^4(theta)=sec^4(theta)-1 }}} Thanks my friends.

SOLUTION: Prove the identity. (Hint: factor the left side first) {{{ 2sec^2(theta)tan^2(theta)-tan^4(theta)=sec^4(theta)-1 }}} Thanks my friends.

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Question 1101708: Prove the identity. (Hint: factor the left side first)

Thanks my friends.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!

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Multiply thru by cos^2

Multiply thru by cos^2 again

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