Question

Last one for the section find the integral of x/1+x^4

Answer 1

try \[u=x^2\]

Answer 2

How did you get that?

Answer 3

same way i got to carnagie hall

Answer 4

Wait is it because when you differentiate you can get xdx all alone on one side?

Answer 5

practice

Answer 6

\[u=x^2\\
du=2xdx\] a good start

Answer 7

So 1/2du=xdx

Answer 8

yes, which is just what you have, and your integral will look real real (real) familiar, since we just did one exactly like it

Answer 9

1/1+u^2du with 1/2 in front of integral

Answer 10

yup

Answer 11

:) that wasn't bad just a little tricky at the beginning

Answer 12

no not too bad, just like the last one