# An intgeral question

$$\int\sqrt{}\frac{1+x}{1-x}$$

I am stuck on this problem. I have no idea about what to do , If you have any idea please share with me ... thanks in advance

Last edited:

Related Calculus and Beyond Homework Help News on Phys.org
Do you mean

$$\int\sqrt{\frac{1+x}{1-x}}$$ ?

I don't think there is any way to express that in terms of elementary functions.

Dick
Homework Helper
Do you mean

$$\int\sqrt{\frac{1+x}{1-x}}$$ ?

I don't think there is any way to express that in terms of elementary functions.
I think there actually is. Do the substitution u^2=(1+x)/(1-x). It just takes some patience.

Dick
Homework Helper
Your hint is excellent. Working the problem in full is strictly against the rules. I'm going to report this and see if it can be removed. READ THE FORUM RULES.

Dick
Homework Helper
janhaa, you can repost your hint. It's very good. Just leave out the full workings, ok?

tiny-tim