Make up a delta (s) polynomial that has a degree higher than 3, and two roots on

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Make up a delta (s) polynomial that has a degree higher than 3, and two roots on the imaginary axis. How can the Routh method be used to find the number and values of these imaginary roots.? Make a list of 7 distinct real poles. Pick a zero which is distinct from the poles. Generate the corresponding delta (s) polynomial, and H(s). Use the Routh method to determine how many RHP roots you have. Did it work ? Using the information from the Routh table, determine whether or not the system is AS, MS, BIBOS, internally AS and/or unstable.

Explanation / Answer

3) Using Routh method we can not find the exact location of roots. But we can say that how many number of roots are there in left half of s-plane and right half of s-plane and on imaginary axis using Routh method

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