題組內容
2. Consider the feedback control systemn in Figure 2, where 
(c) Let
Draw the root locus when k increases from 0 to ㆀo.If k = 1, what is the gain margin of the system?
2. Consider the feedback control systemn in Figure 2, where 
(c) Let
Draw the root locus when k increases from 0 to ㆀo.If k = 1, what is the gain margin of the system?