# Integral homework problem help please

1. Dec 8, 2008

### jason.bourne

how do i solve this integral

integral of [ (1+y^2) / (1-y) ] dy

??

i tried my best but i couldnt solve.
help me out plz.

2. Dec 8, 2008

### gabbagabbahey

Re: integral!!

You say you've tried your best; but you haven't shown exactly what you've tried.

So.....what methods have you tried?

3. Dec 8, 2008

### lurflurf

Re: integral!!

let u=log(1-y)

4. Dec 8, 2008

### HallsofIvy

Staff Emeritus
Re: integral!!

The first thing I would do is divide that out.

5. Dec 9, 2008

### HallsofIvy

Staff Emeritus
Re: integral!!

This is ridiculous. Obviously Jason Bourne hasn't even bothered to look back at this thread.

6. Dec 14, 2008

### jason.bourne

Re: integral!!

guys,
m sorry i couldn't reply. i was away for few days.

thank you very very very much for your replies.
i apologize for not replying.

thanks lurflurf ur method did work.
once again sorry for the late response.

thank you guys.

7. Dec 15, 2008

### dextercioby

Re: integral!!

Make the substitution

$$1-y = t$$. Can you rewrite the integral in terms of 't' ?