QUOTIENTS
Theorem
5. At a point where the denominator is not equal to zero, the derivative of the
quotient of two differentiable functions of x is equal to the denominator
times the derivative of the numerator minus the numerator times the derivative
of the denominator, all divided by the square of the denominator.
If
then
EXAMPLE. Find the derivative of the function
SOLUTION. The derivative of the numerator is 2x, and the
derivative of the denominator is 2. Therefore,
PRACTICE PROBLEMS:
Find the derivatives of the following:
ANSWERS:
