Question

Evaluate the following integrals.

Answer 1

\[\Large \int x \sin(x^2)\cos(x^2) dx\]
Lovely XD

Does a u-substitution come to mind? :D

Answer 2

yes

Answer 3

this is what I got, is it correct?

\[\frac{ (\sin(x ^{2}))^{2} }{ 4 } + C\]

Answer 4

The easiest way to test if you're correct is to just differentiate. haha

Answer 5

how?

Answer 6

Derivative? lol

Answer 7

so using this formula \[\int\limits_{0}^{X}\sqrt{(1+t ^{3})}dt\]

Answer 8

What in the blazes is that? D:

Answer 9

im just gonna input my answer and hope i get it right.

Answer 10

To your first integral?

Answer 11

OMG I GOT IT. thanks anyways for your help.

Answer 12

Uhh... great? lol....

I don't exactly understand what happened (or what that second integral was for) but your first integral was answered correctly, so... yeah :D