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Network TheoryNetwork Functions

For F(s)=1/[(s+2)(s+3)], the residue at s=-2 is?

  • A-1
  • B1
  • C2
  • D3
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Correct Answer: B. 1
Explanation: The residue at s=-2 is lim(s->-2)(s+2)F(s)=1/(s+3)|s=-2=1.
Reference: Standard network theory: residue at simple pole
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