How do find the derivative of $f(x)=12sinx+6cosx$ ?

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Answer 1 · 2015-09-07T06:34:31

12cosx-6sinx

f(x) is a sum of two functions, hence its derivative would be sum of the respective derivatives.

$d/dx f(x)= d/dx 12sinx + d/dx 6cos x$

= 12 cos x - 6sin x

How do find the derivative of f(x)=12sinx+6cosx f(x)=12sinx+6cosx?