The equation 2s4+s3+3s2+5s+10=0 has roots in the left half of s–plane:
A. One
B. Two
C. Three
D. Four
Answer:B
The equation 2s4+s3+3s2+5s+10=0 has roots in the left half of s–plane:
A. One B. Two C. Three D. Four
Explanation: The roots of the equation can be calculated using Routh-Hurwitz criterion and hence there are 2 sign changes in the first column of the row and therefore the two roots lie on the right half of s-plane.