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An open loop transfer function is given by, G(s) H(s) = K(s + 1) s(s + 2)(s2 + 25 + 2)
It has
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- one zero at infinity
- two zeros at infinity
- three zeros at infinity
- four zeros at infinity
Correct Option: C
Drawing root locus of the given open loop transfer function
From the root locus, it can be readily seen that three asymptotes going towards infinity, this three zeros at ∞ .
