Derivative of 2cos(4x)

Derivative of 2cos(4x). 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 2cos(4x): 


(2*cos(4*x))'

(2)'*cos(4*x)+2*(cos(4*x))'

0*cos(4*x)+2*(cos(4*x))'

0*cos(4*x)+2*-sin(4*x)*(4*x)'

0*cos(4*x)+2*-sin(4*x)*((4)'*x+4*(x)')

0*cos(4*x)+2*-sin(4*x)*(0*x+4*(x)')

0*cos(4*x)+2*-sin(4*x)*(0*x+4*1)

0*cos(4*x)+2*4*(-sin(4*x))

0*cos(4*x)+2*-4*sin(4*x)

-8*sin(4*x)

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

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