Tutorial Exercise Find the derivative of the function. 9x F( X ) = 4 - tan(x) Step 1 9x The function f(x) = is a quotient, so we'll need to use the Quotient Rule, which states that 4 - tan(x) df( x) g (x) f' ( x) - f(x)g'(x) dx Lg(x). (9 ( x) ) 2 Recall that the derivative of tan (x) is (It's important to simply memorize the derivatives of a Submit Skip (you cannot come back)