2. Consider the causal LTI system block diagram shown below: Write Matlab code to do the following: - use tf and series to find the overall transfer function H(s). - use pole to find the poles. - use pzmap to generate a pole-zero plot. - use isstable to determine if the system is stable. - use impulse to plot the impulse response. - use lsim to find and plot the output y(t) when the input is given by x(t)=etcos(5t)u(t). Run the simulation from t=0 to t=5sec with a resolution of 1msec ( use t=0:0.001:5; for your vector of sampling times)