A unity feedback system has open-loop transfer function [ mathrm{G}(s)=frac{mathrm{K} e^{-s}}{sleft(s^{2}+5 s+9ight)} ] Determine maximum value of
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A unity feedback system has open-loop transfer function
\[
\mathrm{G}(s)=\frac{\mathrm{K} e^{-s}}{s\left(s^{2}+5 s+9ight)}
\]
Determine maximum value of \(\mathrm{K}\) for closed-loop system to be stable.
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