please help... integrate 1/Sqrt[ x^2-1]
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Originally Posted by guess please help... integrate 1/Sqrt[ x^2-1] Try the change of variable: RonL
if there other method??
Originally Posted by guess if there other method?? Why would you want another method, this change of variable makes the problem trivial. All you need to know is that: and that: RonL
it's because i haven got to learn about cosh...
Originally Posted by guess it's because i haven got to learn about cosh... My good friend Mephistopheles suggests that I recommend that you try the substitution: RonL
If you don't want to use hyperbolic functions because you don't know them, an alternative is using the identity to substitute . It won't be as easy as with the hyperbolic functions, but I assume you do know these basic trigonometric functions.
Thanks Bro, I solved it using the trigo function substitution
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