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Network TheoryNetwork Functions

A network function H(s)=(s+3)/(s^2+5s+6) has poles at?

  • A-1 and -6
  • B-2 and -3
  • C+2 and +3
  • D-3 only
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Correct Answer: B. -2 and -3
Explanation: The denominator factors as (s+2)(s+3), so the poles are at s=-2 and s=-3.
Reference: Standard network theory: pole calculation
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