What is the integral of ln(9-x) over ln(9-x) plus ln(x+3)?

[rasi]

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

 

[zhermes]

Please consider asking a question on your posts, or otherwise indicating their purpose.
http://en.wikipedia.org/wiki/Logarithm

 

[dirk_mec1]

Use u=9-x and v = 3+x then add both integrals.

 

[JJacquelin]

See attachment :