antiderivative help !

sprocker77

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Sep 11, 2010
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im doing a math problem and im stuck. i need to find the antiderivative of xln(x)-x. please show the steps needed
 
sprocker77 said:
im doing a math problem and im stuck. i need to find the antiderivative of xln(x)-x. please show the steps needed

Do you know how to find the antiderivative of x*ln(x) ?
 
Write as \(\displaystyle \int xln(x)dx-\int xdx\)

Use parts on the first one.

Try letting \(\displaystyle u=ln(x), \;\ dv=xdx\)
 
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