engineering recuitment BEL Probationary Engineers Mock Test 2025 Control Systems Stability Analysis Routh-Hurwitz Stability Criteria
The characteristic equation of a system is given as s3 + 3s2 + 7s + k = 0, find the range of values of k for which the system would be stable.
1
4 < k < 10
2
0 < k < 10
3
0 < k < 21
4
3 < k < 18