Derivative of -4cos(8x)

Derivative of -4cos(8x). 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 -4cos(8x): 


(-4*cos(8*x))'

(-4)'*cos(8*x)-4*(cos(8*x))'

0*cos(8*x)-4*(cos(8*x))'

0*cos(8*x)-4*-sin(8*x)*(8*x)'

0*cos(8*x)-4*-sin(8*x)*((8)'*x+8*(x)')

0*cos(8*x)-4*-sin(8*x)*(0*x+8*(x)')

0*cos(8*x)-4*-sin(8*x)*(0*x+8*1)

0*cos(8*x)-4*8*(-sin(8*x))

0*cos(8*x)-4*-8*sin(8*x)

32*sin(8*x)

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

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