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question 1 : A closed loop system is described by: T(s) = (see picture) Using routh's criterion, specify the number of poles located in each

question 1 :

A closed loop system is described by: T(s) = (see picture)

Using routh's criterion, specify the number of poles located in each part of the s-plane (RHS(right hand side), LHS(left hand side)) and on the imaginary axis, jw.

question 2 :

a)find the value of the gain K for the system to oscillate

b)find the frequency of oscillation

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