# Math Help - how to integrate this...

1. ## how to integrate this...

Please help
1/sqrt(a-x^2)
is it sin^-1(x/sqrt(a)) ?

2. Originally Posted by tennis14321
Please help
1/sqrt(a-x^2)
is it sin^-1(x/sqrt(a)) ?
So close! Just remember that $\frac{1}{\sqrt{a}}$ out front.

3. Thank you,
I didn't get the same result as the book for the problem at the end.