The derivative of a function of f at a: is given by 1- h)-f(w) I = f(a:+ f (9:) h>0 h provided the limit exists. Use the definition of the derivative to find the derivative of f (11:) = 79:2 + 2:1: + 8. Enter the fully simplified expression for f (a: + h) f (as). Do not factor. Make sure there is a space between variables