math
posted by mathstudent .
Integrate: (sin 2x)^3 dx
I can see the answer, but how do I do this?

(sin 2x)^3dx =
(sin 2x)^2 (sin 2x)dx =
1/2(1(cos 2x)^2)dcos(2x) 
Thanks!
posted by mathstudent .
Integrate: (sin 2x)^3 dx
I can see the answer, but how do I do this?
(sin 2x)^3dx =
(sin 2x)^2 (sin 2x)dx =
1/2(1(cos 2x)^2)dcos(2x)
Thanks!