Simplify xn−x−nxn+x−n\frac{x^n - x^{-n}}{x^n + x^{-n}}xn+x−nxn−x−n if xn=3x^n = 3xn=3.
4/54/54/5
3/43/43/4
2/32/32/3
1/21/21/2