- #1

lwebb

- 2

- 0

[itex]\int_{-\infty}^{\infty} \frac{x}{1+x^2}dx[/itex]

and

[itex]\lim_{R\rightarrow \infty}\int_{-R}^{R} \frac{x}{1+x^2}dx[/itex] ?

And why does the first expression diverge, whilst the second converges and is equal to zero?