Question

Antiderivative of (a)cos(ax) = sin(ax)
Walk me through the steps here...

Answer 1

\[\int\limits_{}^{}acos(x)dx = a \int\limits_{}^{}\cos(x)dx = a \sin(x)\] I thought it was like this.

Answer 2

you're forgetting the a within your cos expression, it's acos(ax) not acos(x)

Answer 3

anyway you would apply the opposite of the chain rule (I think that's what it's called) to find the integral

Answer 4

brb

Answer 5

Oh right...chain rule...

Answer 6

Still getting used to reversing derivatives.