# Homework Help: Integral Help

1. Sep 11, 2008

### needhelp17

Someone pliz can you solve this integral with the steps..

xln(x+(1+(1+x^2)^1/2)/(1-x^2)^2

the answer is... ln(x+(1+x^2)^1/2)/2(1-x^2) + 1/4(2)^1/2ln(((1+x^2)-x(2)^1/2)/ ((1+x^2)^1/2+x(2)^1/2))

but how do i get this answer?

2. Sep 11, 2008

### rocomath

Re: Integral

We don't give out solutions! Show effort through steps or you won't receive help.

3. Sep 11, 2008

### needhelp17

Re: Integral

How do I solve this?

sec[x]/(1-tan[x]^2)

4. Sep 11, 2008

### needhelp17

I have tried the problem 3 days ....I dont know what to do..this is like a college problem.. and im still in highschool

5. Sep 11, 2008

### Defennder

Which integral are you solving now? For the former, it'll help a lot if you typed it out in Latex. Is it supposed to be like this:
$$\int x ln \left| x + \frac{1+\sqrt{1+x^2}}{(1-x^2)^2} \right | dx$$

6. Sep 11, 2008

### needhelp17

I got to this point

1/(Sqrt[1+x^2](1-x^2))

http://https://www.physicsforums.com/attachment.php?attachmentid=15381&stc=1&d=1221187139 [Broken]

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Last edited by a moderator: May 3, 2017
7. Sep 11, 2008

### needhelp17

the problem is in the image