1/sq root of (5-x^2) and how do you get there??
integrate 1/sqrt(5 - x^2) - Wolfram|Alpha ... click on 'show steps'.
Just in case a picture helps...
... where (key in spoiler) ...
Spoiler:
__________________________________________________ ____________________
Don't integrate - balloontegrate!
Balloon Calculus; standard integrals, derivatives and methods
Balloon Calculus Drawing with LaTeX and Asymptote!
Well I showed you the very first step. The next is to bring the 5 outside of the square root...
Then bring the fifth inside of the square, with x, and bring the 5 in the denominator into its own fraction...
Now, you can substitute sin theta for x over root 5, which is what I've done.
Or you could sub root 5 sin theta for x.