- #1

- 81

- 0

## Homework Statement

Evaluate.

[tex]\int[/tex] y

^{2}(1 - y

^{3}/a

^{2})

^{-2}dy

Upper limit = 0

Lower limit = -a

## Homework Equations

## The Attempt at a Solution

The a's make me really confused and I have no idea how to even start this question.

What I started with was:

Set u = 1 - y

^{3}/a

^{2}

du = (2y

^{2}- 3y

^{2}a)/a

^{3}

Then I know you are supposed to make the integral contain only u's, but I am so confused! Am I on the right track? If so, where do I go from here? If not, can someone lead me on the right track?