Hi.

I want to solve this.

I'm not sure what to do. I used integration by parts and I got stuck. I tried changing the order as well and i think it made it worse.

set:

u = 1/y

du = -1/y^2

dv = cos y

v = sin y

so i get

sin y/y + int (cos y)/y^2 from integration by parts.

If i change the order, I get the bounds as 0 to 1 for the outer integral and y to 1 for the inner integral and switching the dx and dy. That gives me

(cos y)/y - cos y for the inner integral.

So I'm not sure what to do now...