# How do you find the first and second derivatives of #f(x)=(x-1)/(x+1)# using the quotient rule?

##### 1 Answer

Remember that the quotient rule says:

Finding the first derivative:

That is the first derivative. To find the second derivative, use the quotient rule on the first derivative.

Before we continue, it should be noted that

The chain rule states that the derivative of

Going back to finding the second derivative: