An intgeral question

  • Thread starter blu3jam
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  • #1
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[tex]\int\sqrt{}\frac{1+x}{1-x}[/tex]

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
 
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Answers and Replies

  • #2
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Do you mean

[tex]\int\sqrt{\frac{1+x}{1-x}}[/tex] ?

I don't think there is any way to express that in terms of elementary functions.
 
  • #3
Dick
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Do you mean

[tex]\int\sqrt{\frac{1+x}{1-x}}[/tex] ?

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.
 
  • #4
Dick
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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.
 
  • #5
Dick
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janhaa, you can repost your hint. It's very good. Just leave out the full workings, ok?
 
  • #6
tiny-tim
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Hi blu3jam! :smile:

Alternative hint: multiply top and bottom by √(1 - x). :smile:
 
  • #7
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Your hints works. Thanks for your help !
 

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