Question: For the characteristic equations of the feedback control system given, find the range of the value of K required to keep the closed-loop system stable.

  1. For the characteristic equations of the feedback control system given, find the range of the value of K required to keep the closed-loop system stable. At what value of K will the system oscillate and determine the corresponding frequency of oscillation? 

  3.  S^3 + (K + 3)s^2 + Ks+ 4 = 0 

S^3+ (K + 3)s^2+ Ks+ 4 = 0

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