misconception when differentiating rational functions that the derivatives of the numerator and the It is a common () does not equal denominator can be calculated separately. The derivative of Although the derivative is an operator, it does not follow the same rules as some other mathematical operators such as n exponents, in which y х х? Let h(x) h' The derivatives of the numerator and the denominator are both equal to 2x. It is incorrect to say 2x equals - 1 2х x2 Use the quotient rule to find the correct derivative of h(x) х2—2 h(x)=