Question

evaluate this plzzz

$\frac{d ^{2} }{dx^{2} } \sin(x)$

Answer 1

$\frac{d {}^{2} }{dx {}^{2} } \sin(x) \\ \\ = \frac{d}{dx} ( \frac{d}{dx} \sin(x) ) \\ \\ = \frac{d}{dx} \cos(x) \\ \\ = - \sin(x) \\ \\ hope \: it \: helps......$