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

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Answer 1 · 2016-02-21T18:41:25

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$f (x) = 3 x^{2} - 2 cos x$ $f(x)=3x^2-2cosx$

$:.f'(x)=6x-(2xx-sinx)$

$:.f'(x)=6x+2sinx$

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