differentiate with respect to x sin 2x into cos square x
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Diff wrt x
= cos 2x ×2×cos^2 x +2 × cos x × (-sin x) ×sin 2x
= 2 cos2x cos^2 x - 2 sin x cos x sin 2x
= 2 cos 2x cos^2 x - sin 2x sin 2x
= 2 cos 2x cos^2 x - sin^2 2x (ans)
hope it's help uuu
Diff wrt x
= cos 2x ×2×cos^2 x +2 × cos x × (-sin x) ×sin 2x
= 2 cos2x cos^2 x - 2 sin x cos x sin 2x
= 2 cos 2x cos^2 x - sin 2x sin 2x
= 2 cos 2x cos^2 x - sin^2 2x (ans)
hope it's help uuu
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