HW1.2 Let x(n) = {1, -2, 4, 6, -5, 8, 10). Generate and plot the samples (use the stem function) of the following sequences: 1- x(n) = x(n+4) x(n-1) + x(2-n) x(n) 2- 2e0.5n x(n) + cos(0.1n) x(n+2) using Matlab