Consider the discrete time input signal x[n] applied to an LTI discrete time system with impulse response h[n] where; n-2 x[n] = (4) u[n - 2] h[n] = u[n + 1] a. Determine and sketch the output, y[n] = x[n] * h[n]. - * b. Consider y[n] = x[n 3] h[n], express y [n] in terms of y[n]. * - c. Consider y2 [n] = x[n] h[n 1], express y[n] in terms of y[n]. d. Consider y3 [n] = x[n 3] h[n+ 3], express y[n] in terms of y[n]. - *