- #1
James889
- 190
- 1
Hi,
I need to integrate the following:
[tex]\int \frac{x^2}{\sqrt{9-x^2}}[/tex]
So let [tex]x = 3sin\theta[/tex]
[tex]\frac{dx}{d\theta} = 3cos\theta[/tex]
So i now have the integral of [tex]\frac{9sin^2\theta \cdot 3cos\theta}{3cos\theta}[/tex]
How do i go about the integration from here? parts?
I need to integrate the following:
[tex]\int \frac{x^2}{\sqrt{9-x^2}}[/tex]
So let [tex]x = 3sin\theta[/tex]
[tex]\frac{dx}{d\theta} = 3cos\theta[/tex]
So i now have the integral of [tex]\frac{9sin^2\theta \cdot 3cos\theta}{3cos\theta}[/tex]
How do i go about the integration from here? parts?