Derivative of sin(-7x)

Derivative of sin(-7x). Simple step by step solution, to learn. Simple, and easy to understand, so dont hesitate to use it as a solution of your homework.

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Derivative of sin(-7x):

(sin(-7*x))'cos(-7*x)*(-7*x)'cos(-7*x)*((-7)'*x-7*(x)')cos(-7*x)*(0*x-7*(x)')cos(-7*x)*(0*x-7*1)-7*cos(-7*x)-7*cos(-7*x)`
The calculation above is a derivative of the function f (x)