# How do I find the derivative of #y = ln (9x)/(1+x)#?

##### 1 Answer

The quotient rule states that, given an expression

In the case above, our functions are:

Giving us derivatives of:

Thus, by the Quotient Rule:

Note that

Jan 28, 2015

The quotient rule states that, given an expression

In the case above, our functions are:

Giving us derivatives of:

Thus, by the Quotient Rule:

Note that