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The Nyquist stability criterion and the Routh criterion both are powerful analysis tools for determining the stability od feedback controllers. Identify which of the following statements is FALSE:

  1. Both the criteria provide information relative to the stable gain range of the system.
  2. The general shape of the Nyquist plot is readily obtained from the Bode magnitude plot for all minimum-phase systems.
  3. The Routh criterion is not applicable in the condition of transport lag, which can be readily handled by the Nyquist criterion.
  4. The closed-loop frequency response for a unity feedback system cannot be obtained from the Nyquist plot.
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Ans B,why ans is D since that statement is true and asked in question false statement
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