Question

d/dx(cos squre x .sin2x)

Answer 1

$\frac{d}{dx} = \cos {}^{2} (x) \times \sin(2x) \\ = { \sin {}^{2} (x) } \times \cos(2x) \\ = \sin {}^{2} (x) \times {( 2\cos {}^{2} (x) }^{} - 1)$



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