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Partial fractions

  • Thread starter sara_87
  • Start date
  • #1
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Homework Statement



we have 4/((s^2) + 4)(s-1)(s+3)

Homework Equations





The Attempt at a Solution



dividing it up do we get:

A/((s^2) + 4) + B/(s-1) + C/(s+3) = 4

or is it

(As + B)/((s^2) + 4) + C/(s-1) + D/(s+3) = 4
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
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The second one. Since the denominator s2+ 4 is quadratic the numerator may be As+ B.
 
  • #3
763
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cheers!
 

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