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Practice: differentiation

Calculus Level 1

Let \(f(x)=\cos^2x+\sin^2x\), find \(f'(x)\).

\[\cos^2(\sin^2x)\] \[4\cos x+2\cos^2x\sin^2x+4\sin x\] \[0\] \[1\]

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by حكيم الفيلسوف الضائع

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