Derivative of x*sin(x)-(4*cos(x))

Derivative of x*sin(x)-(4*cos(x)). Simple step by step solution, to learn. Simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

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Derivative of x*sin(x)-(4*cos(x)): 


(x*sin(x)-(4*cos(x)))'

(x*sin(x))'+(-(4*cos(x)))'

(x)'*sin(x)+x*(sin(x))'+(-(4*cos(x)))'

1*sin(x)+x*(sin(x))'+(-(4*cos(x)))'

1*sin(x)+x*cos(x)+(-(4*cos(x)))'

sin(x)+x*cos(x)+(4)'*cos(x)+4*(cos(x))'

sin(x)+x*cos(x)+0*cos(x)+4*(cos(x))'

sin(x)+x*cos(x)+0*cos(x)+4*(-sin(x))

x*cos(x)+5*sin(x)

The calculation above is a derivative of the function f (x)

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