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3. suppose that a characteristic polynomial of 9th decree consists of...

# Question: suppose that a characteristic polynomial of 9th decree consists of...

###### Question details

Suppose that a characteristic polynomial of 9th decree consists of an even polynomial factor of 6th degree.
The even polynomial has 2 RHP(right half plane that not include imaginary axis)poles,and the non-even one also has 2 RHP poles.
(a)How many poles of the char. equation lie in the LHP(left half plane that not include imaginary axis )?
(b)How many poles lie on the imaginary axis ??