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## Homework Statement

Integrate (2x)/(x^2 + 1)

## Homework Equations

## The Attempt at a Solution

Is the answer:

(2x) log

**|**x^2 + 1

**|**

as I thought the answer to this type of question is the log of the absolute value of the denominator multiplied by the numerator.

The answer given when I use Wolfram Alpha is log(x^2+1) + (tan x)^-1