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The driving-point impedance of a one-port reactive network is given by
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(s2 + 1)(s2 + 2) s (s2 + 3) (s2 + 4)
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(s2 + 1)(s2 + 3) s (s2 + 2) (s2 + 4)
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s2 (s2 + 1) (s2 + 2) (s2 + 3)
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1 s + 1
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Correct Option: B
For an L– C network, driving-point impedance function poles and zeros should alternate. This is satisfied by the function at (b) alone.
