In Section 3.10 you are learning about linearization. This is a method used to approximate non-linear functions with linear functions. We are practicing with pretty simple functions. But ideally very complicated functions can approximated with very simple linear functions. That's a powerful tool! a) Find the exact linearization L(x) of the function y=tanx at a=4. b) Use the linearization L(x) from the previous part to approximate tan(0.78) to 4 or more decimal places. c) Would the linearization L(x) from the first part give a good approximation for tan ? Without computing the value, explain why or why not