# Homework Help: How to integrate sinx/(1+sinx)

1. Jul 3, 2012

### mathnoobie

1. The problem statement, all variables and given/known data
As stated in the title.

2. Relevant equations
No equations

3. The attempt at a solution
Honestly, I'm stuck. I have no idea where to go. My only thought is to multiply the top and bottom by sinx but where would that get me?

2. Jul 4, 2012

### antibrane

I agree you should multiply the denominator and numerator by some quantity. As a hint, it might be useful to consider that $1-\sin^2x=\cos^2 x$.

3. Jul 4, 2012

### mathnoobie

Yes, I did that, and am confused where to go from there.

4. Jul 4, 2012

### iRaid

Multiple the top and bottom by sin2x

5. Jul 4, 2012

### mathnoobie

Solved it. Multiplied the top and bottom by the Pythagorean Conjugate.