Simplify and choose the equivalent expressions — task. Mathematics State Board, Class 10.

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1. \(\tan^2 A - \sin^2 A\) \(=\)

\(\tan^2 A \sin^2 A\)
\(\tan A \sin A\)
\(\tan^2 A + \sin^2 A\)

2. \(\sec^4 A - \sec^2 A\) \(=\)

\(\tan^2 A - \tan^4 A\)
\(\tan^2 A \tan^4 A\)
\(\tan^2 A + \tan^4 A\)

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