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1. |
The characteristic equation of a system is given ass3+25s2+10s+50=0. What is the number of the roots in the right half s-plane and the imaginary axis respectively? |
A. | 1,1 |
B. | 0,0 |
C. | 2,1 |
D. | 1,2 |
Answer» C. 2,1 | |