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DHASHNI Group Title

can any one help me!!!!!

  • 2 years ago
  • 2 years ago

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  1. DHASHNI Group Title
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    |dw:1327218851048:dw|

    • 2 years ago
  2. DHASHNI Group Title
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    its calculus

    • 2 years ago
  3. wasiqss Group Title
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    is it t+1 in the bracket

    • 2 years ago
  4. DHASHNI Group Title
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    no its inside log

    • 2 years ago
  5. Jemurray3 Group Title
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    Is that \[ \int_1^x \frac{B\cdot \log(1+t)}{1+t^2} dt \]

    • 2 years ago
  6. DHASHNI Group Title
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    \[\int\limits_{0}^{1} \frac{8\ln(1+t)}{1+t^2} \]

    • 2 years ago
  7. DHASHNI Group Title
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    its this ^

    • 2 years ago
  8. Jemurray3 Group Title
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    This looks like a pretty nasty integral, what class is this for? :)

    • 2 years ago
  9. Jemurray3 Group Title
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    My first thought would be integration by parts, actually.

    • 2 years ago
  10. wasiqss Group Title
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    ok now i got it

    • 2 years ago
  11. DHASHNI Group Title
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    @jem: i am a high school student :P

    • 2 years ago
  12. DHASHNI Group Title
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    @was : can u help!!!!

    • 2 years ago
  13. DHASHNI Group Title
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    help

    • 2 years ago
  14. wasiqss Group Title
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    ok i wud go in this way by integration by parts take 8 out now u left with (\[8\int\limits_{x}^{1}(\ln(1+t)/(1+t^2)\] now take 1/(1+t^2) as part to integrate , and derivative ln (1+t)

    • 2 years ago
  15. Aron_West Group Title
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    \[\pi \log(2)\]

    • 2 years ago
  16. Aron_West Group Title
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    ~~2.17759

    • 2 years ago
  17. wasiqss Group Title
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    integral of 1/(1+t^2) is tanx

    • 2 years ago
  18. Jemurray3 Group Title
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    arctan^

    • 2 years ago
  19. wasiqss Group Title
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    yehh jemurray typo

    • 2 years ago
  20. DHASHNI Group Title
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    @aron: hw did you got the ans ? can you show the steps ? @was:then?

    • 2 years ago
  21. wasiqss Group Title
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    dhash i have simplified enuf lol

    • 2 years ago
  22. DHASHNI Group Title
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    i got '0=0' thats why i am asking you

    • 2 years ago
  23. wasiqss Group Title
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    use integration by parts, i have told u what to integrate and what to differentiate ,

    • 2 years ago
  24. DHASHNI Group Title
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    i didnot get the ans in that way

    • 2 years ago
  25. Jemurray3 Group Title
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    You've neglected to mention the integral \[ \int_0^1 \frac{\tan^{-1}(x)}{1+x} dx \] which is pretty damn complicated, I would say.

    • 2 years ago
  26. Aron_West Group Title
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    4 i (-Li_2((1/2-i/2) (t+1))+Li_2((1/2+i/2) (t+1))+log(t+1) (log((-1/2-i/2) (t+i))-log(1-(1/2-i/2) (t+1))))+constant

    • 2 years ago
  27. DHASHNI Group Title
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    yep jem is right

    • 2 years ago
  28. Aron_West Group Title
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    Now, just plug in the limits.

    • 2 years ago
  29. Jemurray3 Group Title
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    With respect Aron, we all know how to use wolfram alpha.

    • 2 years ago
  30. wasiqss Group Title
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    haha jem

    • 2 years ago
  31. wasiqss Group Title
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    jem bt what else cud b easier way other than by parts to teach a high scool student

    • 2 years ago
  32. Jemurray3 Group Title
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    you're missing my point, integration by parts still requires you to solve that integral I wrote, which is kinda rough.

    • 2 years ago
  33. wasiqss Group Title
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    i know jemm im tryin to simplify it

    • 2 years ago
  34. Aron_West Group Title
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    Try x = tan y

    • 2 years ago
  35. wasiqss Group Title
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    yeah got it place t =arctany then its simple

    • 2 years ago
  36. DHASHNI Group Title
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    cool thanks that works

    • 2 years ago
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