# Integration problem

1. Oct 4, 2003

### Khan

Hey everyone, I just need a little help with this integral, I just can't get it:

integral of: (1/((x^(1/2)(x^(1/2)+1)) I know this is hard to read typed out, but said it is "Integral of 1 over the quantity root x times quantity root x plus 1. I tried doing partial fractions, but then I get stuck again.

2. Oct 4, 2003

### Hurkyl

Staff Emeritus
Did you try the substitution x = u2 to get rid of the roots?

3. Oct 4, 2003

### Khan

I think I tried that, but that led me to a trig substition with arc tan and it's not leading my to the right answer, which I think is only with natural log.

4. Oct 4, 2003

### Hurkyl

Staff Emeritus
Show me what you got; none of the terms involved should be quadratic, thus no arctan function.

5. Oct 4, 2003

### Khan

Oh yea! The x=u^2 substitution did the trick actually, thanks for your help!