a problem about integral

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January 8th 2012, 09:30 AM
mami

a problem about integral

could you look at this problem please. thanks for now.

$\int_{2}^{4}\frac{\sqrt{ln\left ( 9-x \right )}}{\sqrt{ln\left ( 9-x \right )}+\sqrt{ln(x+3)}}dx$
January 8th 2012, 11:02 AM
girdav

Re: a problem about integral

Use the substitution t=6-x.

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