題組內容

3.  Consider the following feedback system with plant 61bc249ac2593.jpgand controller61bc24b19faa4.jpg61bc2475ecb1c.jpg61bc24c4097d4.jpg

(d)  To stabilize the system, a control engineer chooses 61bc2510c2c4d.jpg) where p>0. Show that the root locus contains a circle for K>0.