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A control system has G left( s right)H left( s right)...

This question belongs to Electronics And Communications Engineering Control Systems
Control Systems
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A control system has $$G\left( s \right)H\left( s \right) = \frac{{K\left( {s + 1} \right)}}{{s\left( {s + 3} \right)\left( {s + 4} \right)}}.$$      Root locus of the system can lie on the real axis

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Correct Answer: Option C
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