Question

Evaluate the indefinite integral: xsin(x^2)dx

We are supposed to use U substitution and i substituted everything in but I'm not sure I substituted du correctly.

Answer 1

i would try using u = x^2 .

Answer 2

i did and then i made du=xsinsdx but when I put it all together it is not making sense

Answer 3

-0.5cos(x^2)

Answer 4

let u = x^2.
du = 2x dx or x dx = du /2.

then the integration will be sin (u) du/2

Answer 5

thank you both!

Answer 6

welcome ;)