Optimization using MATLAB and proofs

I attached homework 3 and the lecture notes. It saids homework 3 is based on chapter 2 lecture notes, but I also attached chapter 3 in case. In this homework, you use the Rosenbrock function and unconstrained methods by using Steepest Descent Method. Some of the homework problems is proofs, and other problems involve using MATLAB. Please answer all the questions and use MATLAB. I can only do $60. I am only college and hope you can understand.