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annas

Solve the differential equation y″ – y′ – 2 y = 0 ? (show the method to solve differential eq with constant coefficient)

  • one year ago
  • one year ago

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  1. annas
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    i guess we'll use substitution here ?

    • one year ago
  2. wasiqss
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    lool easly :)

    • one year ago
  3. annas
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    i forgot the method but i have done it by substitute y = e mx

    • one year ago
  4. annas
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    thanks wasiqss

    • one year ago
  5. wasiqss
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    we have to take out complimentary and particular solution right

    • one year ago
  6. annas
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    yes

    • one year ago
  7. myko
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    y'=lambda so: \[\lambda ^{2} - \lambda -2=0\] solving : lambda = 2 and -1 solution: \[y=C _{1}e ^{2t}+C _{2}e ^{-t}\]

    • one year ago
  8. wasiqss
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    first take out factors of this equation

    • one year ago
  9. wasiqss
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    right myko

    • one year ago
  10. annas
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    one more thing how to write the solution when discriminant is zero , positive & negative

    • one year ago
  11. wasiqss
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    in terms of 0, like we have two roots of lamba =2, then answer will be c1e^2+c2xe^2

    • one year ago
  12. annas
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    ok

    • one year ago
  13. wasiqss
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    for negative iota aaajate hain

    • one year ago
  14. wasiqss
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    like in terms of sin and cos chale jaata hai

    • one year ago
  15. annas
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    ok wasiq

    • one year ago
  16. annas
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    thank you myko and wasiqss :)

    • one year ago
  17. wasiqss
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    np khocha ;)

    • one year ago
  18. annas
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    khocha tumhari math achi ha :P

    • one year ago
  19. wasiqss
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    haha mujhe pata hai :D teri aapi ne kafi madad ki hai :)

    • one year ago
  20. annas
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    nice lana is also awesome at maths

    • one year ago
  21. wasiqss
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    yeh she is :)

    • one year ago
  22. annas
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    or khocha tum chay pia gi?

    • one year ago
  23. wasiqss
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    lol elaichi wala :)

    • one year ago
  24. annas
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    hum tum ko badam wala chay peli ga

    • one year ago
  25. annas
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    :P

    • one year ago
  26. wasiqss
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    aala aala khocha khush hua , ab khocha ko medal toh dai :D

    • one year ago
  27. annas
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    oh abhi dati ha tum ko medal :P

    • one year ago
  28. wasiqss
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    aala aalah :D

    • one year ago
  29. annas
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    wallah ya tumhari medal :P

    • one year ago
  30. annas
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    chlo khocha hum tum ko programming seekhati ha

    • one year ago
  31. wasiqss
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    seekha seekha wallah :)

    • one year ago
  32. annas
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    <?php echo 'i <3 khocha :P'; ?> output: i <3 khocha :P

    • one year ago
  33. wasiqss
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    khoocha ka dil garden gardn hogaya :D

    • one year ago
  34. annas
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    lol wallah coding faluda ha

    • one year ago
  35. annas
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    chlo khocha hum chalti ha :P

    • one year ago
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