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anonymous

  • 5 years ago

Help on system of differential equations? http://dl.dropbox.com/u/17638088/desystem1.pdf Please check if there's anything wrong in my solution.

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  1. dumbcow
    • 5 years ago
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    unable to open file, sorry

  2. anonymous
    • 5 years ago
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    i'm looking at it, give me a sec

  3. anonymous
    • 5 years ago
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    @dumbcow: oh, sorry, I wonder if the problem is the Adobe Reader plug-in in your browser? it works well in mine.. @MathMind: thanks.

  4. anonymous
    • 5 years ago
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    do you know what's the right answer?

  5. anonymous
    • 5 years ago
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    Here's WolframAlpha's: http://www.wolframalpha.com/input/?i=x%27+%2B+y%27+%2B+2y+%3D+0%2C+x%27+-+3x+-+2y+%3D+0 I hope I typed the problem correctly in there though haha.

  6. anonymous
    • 5 years ago
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    wtf.. hahah, weird answer

  7. anonymous
    • 5 years ago
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    I know right.. haha. Maple, anyone? Lol.

  8. dumbcow
    • 5 years ago
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    sorry its a bit late but i worked out what you entered into wolfram my solution: \[x(t) = -2c _{1}e ^{2t} - c _{2}e ^{-3t}\] \[y(t)= c _{1}e ^{2t} + 3c _{2}e ^{-3t}\] it looks like it could be the same as wolframs answer but you would have to have initial conditions to check, their constants are different hope this helps

  9. anonymous
    • 5 years ago
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    haha thanks, i think you got the right answer. it also appeared on my final, only thing is that my final was multiple choice, and your answer looks like the right answer there haha. :D

  10. dumbcow
    • 5 years ago
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    :)

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