Here is my original problem:

and

Here is what the book got:

I know I must have made algebra mistake somewhere, I just cant figure it out where I went wrong. Please help! Thanks.

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- Dec 1st 2010, 06:55 PMdbakeg00Trig Integral
Here is my original problem:

and

Here is what the book got:

I know I must have made algebra mistake somewhere, I just cant figure it out where I went wrong. Please help! Thanks. - Dec 1st 2010, 07:05 PMdwsmith
First, you forgot to multiply my z in the first section. uv-int vdu.

- Dec 1st 2010, 07:09 PMdwsmith
Also, you should have made a second u sub in the vdu integral.