How do you differentiate $f (x) = 3 x^{2} - 2 cos x$ $f(x) = 3x^2 - 2 cosx$ ?

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Answer 1 · 2015-07-06T21:08:38

$2 (3 x + 2 sin x)$ $2(3x+2sinx)$

Let $y = 3 x^{2} - 2 cos x$ $y=3x^2-2cosx$

$y'=6x+2sinx$

$y'=2(3x+sinx)$

How do you differentiate f(x) = 3x^2 - 2 cosxf(x)=3x2−2cosxf(x) = 3x^2 - 2 cosx?