1. integrating problem

The problem is
integral of sin(x)/(1+x^2) from -1 to 1
I have tried integration by parts and substitution but it never seems to get any simpler. Any help would be appreciated.

Thanks

2. note that $\frac{\sin{x}}{1+x^2}$ is an odd function.

so ... $\int_{-1}^1 \frac{\sin{x}}{1+x^2} \, dx = \, ?$

3. the integral of an odd function from -a to a is 0

::smacks head against wall::
wow, that was really simple.

thanks for the help though.