BC:10.1 A LTI system with impulse response (n-1) - 3.466(-0.2)(n->un - 1 has an input signal k-0 a.) Find an expression for H(z), and find the val- ues of all zeros and poles for the system. Deter- mine whether or not the system is stable and briefly justify why b.) Find an expression for the normalized frequency response of the system, H(e Use Matlab to plot the magnitude and phase (in degrees) of H(e'") in the range of-r-a0