Solutions should show all of your work, not just a single final answer. 1. (a) Apply the Trapezoidal Rule to e- dr using n = 4 subintervals, rounding your approxima- A x= 2 0 tion to 5 digits after the decimal point. (Don't confuse e-2? = e-(12) and (e-7)? = e-2r.) 4X = 0.5 XO = O * 1 = 0.5 X2 = 1 *3 = 1.5 Xy = 2 (b) To three digits after the decimal point find the bound on (Erl applied to edx using n = 4 subintervals. (First find K by seeing where [f"(x) | is maximized on [0, 2]. You may use a graph.) (c) Set up the bound for | Erl applied to / edx using n subintervals for general n. (d) Use the bound for |Er| to determine an n such that | Er| is at most .001