Consider a unity-feedback control system with the following feedforward transfer function: K G(s) $(s² + 4s + 8) Plot the root loci for the system. If the value of gain K is set equal to 2, where are the closed-loop poles located?

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Modern control engineering 4th edition, chapter 6. I would like to understand the details of the method for doing this. Thank you in advance for your answer. (Plot the root loci by MathLAB)

Consider a unity-feedback control system with the
following feedforward transfer function:
K
G(s)
$(s² + 4s + 8)
Plot the root loci for the system. If the value of gain K is set
equal to 2, where are the closed-loop poles located?
Transcribed Image Text:Consider a unity-feedback control system with the following feedforward transfer function: K G(s) $(s² + 4s + 8) Plot the root loci for the system. If the value of gain K is set equal to 2, where are the closed-loop poles located?
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