Evaluate the following definite integral: `int_2^3x/(x^2+1)dx`

Explanation

To evaluate the definite integral \( \int_2^3 \frac{x}{x^2 + 1} \, dx \), we can follow these steps:

### Step 1: Substitution
Let's use the substitution method. We can set:
\[ t = x^2 + 1 \]
Then, we differentiate \( t \) with respect to \( x \):
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