Question

How do you simplify `x/(x^2+1)divx/(x^4-1)` and state the domain?

Answer 1

`y = x/(x^2 + 1) xx (x^4 - 1)/x`

`y= x/(x^2 + 1) xx ((x^2 + 1)(x^2 - 1))/x`

`y = x^2 - 1`

The domain will be `{x|x in RR, x!=+-1, 0}`

Hopefully this helps!