The points at which derivatives of all the state variables are zero are:
A. Singular points
B. Nonsingular points
C. Poles
D. Zeros
Answer:A
The points at which derivatives of all the state variables are zero are:
A. Singular points B. Nonsingular points C. Poles D. Zeros
Explanation: Singular points are the points that are calculated by equating the denominator equal to zero and at which the derivatives of all the state variables are zero.