Derivative of 3cos(2x)

Derivative of 3cos(2x). 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 3cos(2x): 


(3*cos(2*x))'

(3)'*cos(2*x)+3*(cos(2*x))'

0*cos(2*x)+3*(cos(2*x))'

0*cos(2*x)+3*-sin(2*x)*(2*x)'

0*cos(2*x)+3*-sin(2*x)*((2)'*x+2*(x)')

0*cos(2*x)+3*-sin(2*x)*(0*x+2*(x)')

0*cos(2*x)+3*-sin(2*x)*(0*x+2*1)

0*cos(2*x)+3*2*(-sin(2*x))

0*cos(2*x)+3*-2*sin(2*x)

-6*sin(2*x)

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

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