Sketch the Nyquist plot based on the Bode plots for each of the following systems, and then compare your result with that obtained by using the Matlab command nyquist: Don't be concerned with the details of exactly where the curve goes, but do make sure it crosses the real axis at the right spot, has the correct number of -1 encirclements and goes off to infinity in the correct direction. a. KG(s) = K(s + 2)/s + 10
b. KG(s) = K/(s + 10) (s + 2)^2
c. KG(s) = K(s + 10) (s + 1)/(s + 100) (s + 2)^3