Math Help - I need help with an integra

1. I need help with an integra

hi!

How do I solve the integral of:

(x.arcsinx/squrt 1-x^2 )dx x bilongs (-1,1)

thanks

2. Originally Posted by hoger
hi!

How do I solve the integral of:

(x.arcsinx/squrt 1-x^2 )dx x bilongs (-1,1)

thanks
$\int_{-1}^1 \frac{x {\displaystyle } sin^{-1}(x)}{\sqrt{1-x^2}}dx$ is an improper integral.
Re-write it in terms of limits.
to evaluate the integral.
Use $t=sin^{-1}(x)$ then integration by parts.