# How do you use the quotient rule to differentiate #y=cos(x)/ln(x)#?

##### 1 Answer

Aug 4, 2014

The quotient rule states:

Let

We know that the derivative of

Now we may simply plug into the quotient rule formula:

And there is our answer. If we would like, we can split this fraction up to make it a bit prettier:

This simplifies to: