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bahrom7893

  • 5 years ago

I really need help with this homework problem, the topic is differential equations: Solve the D.E. dy/dx = ( x - y - 1 ) / ( x + y + 3 ), by finding h and k so that the substitutions x = u + h and y = v + k transform it into a homogeneous equation dv / du = ( u - v ) / ( u + v )

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  1. bahrom7893
    • 4 years ago
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    I do remember solving this, not sure whether I have the solution now.

  2. anonymous
    • 4 years ago
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    The solution is... I dunno.

  3. bahrom7893
    • 4 years ago
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    Asked on Sun, Feb 20, 2011, 10:19:25 GMT-0500 (Eastern Standard Time)

  4. anonymous
    • 4 years ago
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    That was like a zillion years ago, lol.

  5. anonymous
    • 4 years ago
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    YESS YESS I GOT IT!!!!!

  6. bahrom7893
    • 4 years ago
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    GOOD JOB!!!!!

  7. bahrom7893
    • 4 years ago
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    let me see if i still have my ODE notes somewhere.... man I'll find them later

  8. anonymous
    • 4 years ago
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    Anyway the answer is...

  9. anonymous
    • 4 years ago
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    \[\Large x^{2}-y^{2}-2xy-6y=c\]

  10. bahrom7893
    • 4 years ago
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    Good job! That probably is the right answer.. Someone give him a medal

  11. anonymous
    • 4 years ago
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    Thank goodness! That means that my senior year of high school was not a complete waste of time!

  12. anonymous
    • 4 years ago
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    That makes me wanna revise all the awesome math & physics that i learnt these last few years. Thanks, Bahrom, thank you..

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