Q 4: For a certain unity feedback system, the feed forward transfer function is: G(s)= K different G(s) for different sets s(3+s)(7+s) Determine the following: a. Draw the pole-zero map on the S-plane...

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Extracted text: Q 4: For a certain unity feedback system, the feed forward transfer function is: G(s)= K different G(s) for different sets s(3+s)(7+s) Determine the following: a. Draw the pole-zero map on the S-plane b. Compute the range of values of 'K' for the system to maintain stability c. Compute the marginal values of 'K' for the system attain marginal stability d. Compute the frequency of sustained oscillation at marginal value of 'K' e. Write a reflection on the stability of the given systems in terms of the value of 'K'