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The phase margin of a system with the open-loop transfer function...

This question belongs to Electronics And Communications Engineering Control Systems
Control Systems
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The phase margin of a system with the open-loop transfer function $$G\left( s \right)H\left( s \right) = \frac{{\left( {1 - s} \right)}}{{\left( {1 + s} \right)\left( {2 + s} \right)}}$$

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Correct Answer: Option D
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