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Prove the following identity: sec^4theta...

Prove the following identity: `sec^4theta-sec^2theta=tan^4theta+tan^2theta`

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To prove the identity \( \sec^4 \theta - \sec^2 \theta = \tan^4 \theta + \tan^2 \theta \), we can follow these steps: ### Step 1: Start with the Left-Hand Side (LHS) We begin with the left-hand side of the equation: \[ \sec^4 \theta - \sec^2 \theta \] ...
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