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haganmc

  • 3 years ago

how to find a general solution to the differential equation... y"-y'-11y=0

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  1. lgbasallote
    • 3 years ago
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    are you familiar with something called "auxilliary equation" or something like that?

  2. haganmc
    • 3 years ago
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    yes... i got r^2-r-11=0

  3. lgbasallote
    • 3 years ago
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    right

  4. lgbasallote
    • 3 years ago
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    now use quadratic formula to get the value of r

  5. haganmc
    • 3 years ago
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    i thought thats what i do

  6. lgbasallote
    • 3 years ago
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    so..what did you get>

  7. haganmc
    • 3 years ago
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    i got r= -1+-sqrt(45) /2

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