Need help with this integral! I start by substituting but don't know how to go further...
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try u = 3- t I like dealing with easier roots Might help here too
Last edited by jbpellerin; Sep 14th 2008 at 07:18 PM. Reason: woops
Originally Posted by jbpellerin try u = 3- t I like dealing with easier roots Might help here too But here we have ...I don't see it working...
Divide by radical 3 Now sub and use the identity
Last edited by 11rdc11; Sep 14th 2008 at 10:15 PM. Reason: correction thanks javax
but by dividing with wouldn't it be or I messed it?
Now remember
Last edited by 11rdc11; Sep 14th 2008 at 08:57 PM. Reason: Correction thanks javax
yes man and not
Thanks for pointing that out. I can't believe I did that, I'm ashamed lol. Ok let me go fix my mistake.
Here's my approach: First substitution to make things look neat: Second substitution: Replacing, we get: By completing the square, we get: Done! After some backsubbing and simplification:
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