Electrical, Electronics and Communications Engineering Department Signals and Systems I (ECEN 220), Spring 2021 Homework II The purpose of the assignment problems is to assist you understand the concepts and theories that you learnt in chapter two regarding Linear Time Invariant Systems and Convolution. Please provide your solutions clearly and in readable English. Please show all the necessary analytical and graphical steps and results. Issue Date: Feb. 02. 2021 Due Date: Feb. 09, 2021 1. Let h(t) = e'u(-4-2) + ult-4) a. Draw the graph of h(-1) b. Determine A and B such that h(-t)=0 for A