Mr. Johnson was 38 years old when he started his job. He worked for33 years. How old was he when he retired?

Math 1132 Week 1 Derivative: The Derivative of a function f(x) tells us the rate of change of that function. It is written as F’(x)=df/dx=lim(h->0) (f(x+h)-f(x)/h Trigonometric Derivatives and Identities: d/dx sinx=cosx d/dx cosx= -sinx d/dx tanx=sec^2 x d/dx cotx= -csc^2 x d/dx...