Question: I need help on this question. The problem: If y=f(u)= cos(-3u) and u=g(x)=e^-4x, Then by the chain rule, dy/dx =
I need help on this question. The problem: If y=f(u)= cos(-3u) and u=g(x)=e^-4x, Then by the chain rule, dy/dx =
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