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jaersyn

  • 3 years ago

I need help with the bottom two integrals, top one is an example of how to do'em http://i.imgur.com/vRAvJ.jpg?1

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  1. jaersyn
    • 3 years ago
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    The questions are from the partial fractions section to clue you in on how to maybe go about this

  2. jaersyn
    • 3 years ago
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    The thing is I went further into this, but it got real hectic. The answer I got for the bottom left integral was similar to the answer, but not quite, not sure where I went wrong

  3. experimentX
    • 3 years ago
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    I'll give you short answer of tan |dw:1349542124538:dw|

  4. experimentX
    • 3 years ago
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    |dw:1349542218574:dw|

  5. experimentX
    • 3 years ago
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    for the other one ... use weistrass subs ... doesn't look nice to me.

  6. jaersyn
    • 3 years ago
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    |dw:1349542371259:dw|

  7. experimentX
    • 3 years ago
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    |dw:1349542384994:dw|

  8. jaersyn
    • 3 years ago
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    Oh.. wow, see i don't have math vision like that wth. how do you even know. just you've done it so many times??

  9. experimentX
    • 3 years ago
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    I've seen it couple of times.

  10. jaersyn
    • 3 years ago
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    that's the right answer for that one, but i have to use the substitutions given, when should I sub them in?

  11. jaersyn
    • 3 years ago
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    and what is "weistrass subs"

  12. experimentX
    • 3 years ago
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    http://en.wikipedia.org/wiki/Weierstrass_substitution no matter what ... these substitutions always work ... if you can find nice answers from other method, don't use this.

  13. experimentX
    • 3 years ago
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    looks like you have simplified it so nicely ... |dw:1349542787800:dw|

  14. jaersyn
    • 3 years ago
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    what hapens to the 4?

  15. jaersyn
    • 3 years ago
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    i tried taking the 4 out so its 15/256 or something then doing the arctan thing

  16. zepdrix
    • 3 years ago
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    Buhaha, you took a picture of your notebook XD Nice handwriting at least c:

  17. experimentX
    • 3 years ago
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    yeah that would even make it nicer. |dw:1349542995485:dw|

  18. jaersyn
    • 3 years ago
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    roflmao "nice", yes.

  19. jaersyn
    • 3 years ago
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    thnx zep, it's easier for you guys to see and understand the problem that way roflmao

  20. zepdrix
    • 3 years ago
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    It's bubbly like comic sans, and it's legible XD hehe

  21. jaersyn
    • 3 years ago
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    is that right ex?

  22. experimentX
    • 3 years ago
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    should be similar to it. not sure ... try working on paper ... doing here is like playing around. i never get it right.

  23. jaersyn
    • 3 years ago
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    1/(15/256) arctan [(u+1/8)/(sqrt (15/256))]

  24. jaersyn
    • 3 years ago
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    |dw:1349543315889:dw|

  25. jaersyn
    • 3 years ago
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    a^2 = 15/256 so a is sqrt(15/256) right

  26. jaersyn
    • 3 years ago
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    i g2g now, but thanks for all your help. if anyone leaves more detailed info that'd be great, i'll be back to check.

  27. jaersyn
    • 3 years ago
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    and screw weierstrass

  28. experimentX
    • 3 years ago
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    I don't like Weierstrass either

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