Posted by Akash on .
If y= (x1)log(x1)(x+1)log(x+1), prove that dy/dx = log(x1/1+x)

Class 12th Calculus 
Reiny,
use the product rule
dy/dx = (x1)(1/(x1)) + log(x1)  [ (x+1)(1/(x+1)) + log(x+1) ]
= 1 + log(x1)  1  log(+1)
= log [(x1)/(x+1)]
= RS , had you typed it correctly as log((x1)/(1+x))