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February 22nd, 2009, 07:07 PM   #1
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Improper integral

-infinity
S xe^-x^2 //READ AS : x times e to the power of - x squared
infinity


I don't think I could use integration by parts. so I am confused. I could split the limits into two but...?
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February 22nd, 2009, 07:42 PM   #2
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Re: Improper integral

Split it into two integrals and . Use a u sub to find the integrals.
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February 23rd, 2009, 01:12 PM   #3
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Re: Improper integral

Quote:
Originally Posted by tnutty
-infinity
S xe^-x^2 //READ AS : x times e to the power of - x squared
infinity


I don't think I could use integration by parts. so I am confused. I could split the limits into two but...?
Your problem statement is incomplete. Do you want indefinite integral or definite integral? If you want definite integral, what limits?
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