X ㅅ y aa (((please solve all parts by matlab ))) For the following system, apply Nyquist analysis method to answer each

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X ㅅ y aa (((please solve all parts by matlab ))) For the following system, apply Nyquist analysis method to answer each of the next questions: Where X = 7, Y- Find: a. The starting point. b. The ending point. c. The intersection with the real axis. d. The intersection with the Im axis. e. Sketch the Nyquist Plot showing all parts above, and discuss the stability. f. Verify your plot using the Matlab code below: (here X=5, and Y=9 just for demonstration) s = tf('s') G5 = ((s+1)*(s+3))/((5-5)*(s-9)) nyquist(G5, 'red')