From: Fred Nurk on
Thanks for all the help.

William Elliot wrote:
> <snip>
> x = y^2; x = y + 2
> y^2 = y + 2; y^2 - y - 2 = (y - 2)(y + 1) = 0
>
> Area = integral(-1,2) (y^2 - y - 2) dy
> <snip>

Shouldn't it be integral(-1, 2) (2 + y - y ^ 2) dy ?

Fred Nurk
From: William Elliot on
On Mon, 19 Jul 2010, Fred Nurk wrote:
> Thanks for all the help.
>
> William Elliot wrote:

>> x = y^2; x = y + 2
>> y^2 = y + 2; y^2 - y - 2 = (y - 2)(y + 1) = 0
>>
>> Area = integral(-1,2) (y^2 - y - 2) dy
>> <snip>
>
> Shouldn't it be integral(-1, 2) (2 + y - y ^ 2) dy ?

Yes.