Simplify: x+1xx2−1x2\frac{\frac{x+1}{x}}{\frac{x^2-1}{x^2}}x2x2−1xx+1
xx−1\frac{x}{x-1}x−1x
x+1x−1\frac{x+1}{x-1}x−1x+1
xx+1\frac{x}{x+1}x+1x
xxx