Posted by Natalie on .
Find the derivative of y with respect to x.
y= [(x^5)/5]lnx[(x^5)/25]
How would I go about doing this?
Should I use the product rule to separate
(x^5)/5]lnx ?

Calculus 
bobpursley,
I would change the variable, let u= x^5/5
then
y= u ln xu
y'=u/x + u' lnx u'
and surely you can find u'