Q.29 Match the inferences X, Y and Z , about a system, to the corresponding properties of the elements of first column in Routh’s Table of the system characteristic equation.
X : The system is stable …
Y : The system is unstable …
Z : The test breaks down ….
P : … When all elements are positive
Q : …. When any one element is zero
R : …. When there is a change in sign of coefficients
Answer: (D)
Explanation:
