Attachment 25840

I am stuck on this problem. I tried substituting u= cos^3(x^2), but it didnt work for me.

I am not asking for someone to do this for me I just need some help getting started.

Thanks in advance.

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- November 22nd 2012, 07:33 AMnubshatIntegral Help
Attachment 25840

I am stuck on this problem. I tried substituting u= cos^3(x^2), but it didnt work for me.

I am not asking for someone to do this for me I just need some help getting started.

Thanks in advance. - November 22nd 2012, 07:47 AMskeeterRe: Integral Help
- November 22nd 2012, 08:02 AMSorobanRe: Integral Help
Hello, nubshat!

Quote:

Note that: .

The integral becomes: .

Let

. . When

. . When

Substitute: .

. . . . . . . .