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**Integral of 2/(x^2-1)dx HELP!!!**

## Homework Statement

Evaluate: ∫2/(x

^{2}-1)dx

## Homework Equations

Inverse trig functions arent working.

∫1/x+1dx=ln(1+x)

## The Attempt at a Solution

My tutor and i both attemped the solution many ways, and are still at a stand still.

According to my calculator and wolfram alpha, the answer is -ln(x+1/x-1)

The closest i have gotten is 2∫[itex]1/((x+1)(x-1))[/itex]dx