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## Homework Statement

∫〖Sin^(2 ) x * cos2x dx〗

## Homework Equations

The right answer should be: sin 2x / 4 - x/4 - sin4x / 16

## The Attempt at a Solution

If i would set Sin^(2 ) x= (1-cos2x)/2 I can replace it in the integral

Then we get:

∫▒〖(1-cos2x)/2 cos2x dx〗

As far as I am concerned we cannot use the constant multiple rule because there is no constant to multiply

I don’t know how to go on from here to solve it