Question: 6 . 2 1 Draw the Nyquist plot for the system in Fig. 6 . 8 7 . Using the Nyquist stability criterion. determine the

6.21 Draw the Nyquist plot for the system in Fig. 6.87. Using the Nyquist stability criterion. determine the range of \( K \) for which the system is stable. Consider both positive and negative values of \( K \).
6 . 2 1 Draw the Nyquist plot for the system in

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