- #1

DJ-Math

- 4

- 0

Member warned about posting with no template and no effort shown

**Hi,**

I'm trying to solve ∫(x

I'm trying to solve ∫(x

^{2}-1)/(1+x^{2})*1/(1+x^{4})^{(1/2)}dx**I'm apparently meant to get some non-complex result, the question suggests to use the substitution u**

But I haven't gotten anywhere with this.

Any methods or suggestions (or the solution) would be much appreciated!

Thanks

^{2}= x^{2}+ 1/x^{2}But I haven't gotten anywhere with this.

Any methods or suggestions (or the solution) would be much appreciated!

Thanks