. 100(8+5) The open-loop transfer function of the known control system is G(s)H(s) = Try to (5-2)(+8)(s+20) sompile MATLAB program. draw the polar coordinate diagram of the system, and use the Nyquist stability criterion to determine the stability of the closed-loop system. (Program and run in Matlab, take pictures of the program and results, then paste them into this test paper)