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AmTran_Bus

  • one year ago

Trig integral, is it possible to solve this way?

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  1. AmTran_Bus
    • one year ago
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    So for this I integrated but did not plug in the 4 sec theta. Is that legal?

  2. AmTran_Bus
    • one year ago
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    Well, I mean I know it is odd to do, but the basic format of the answer should be correct, right?

  3. Loser66
    • one year ago
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    show your work, please

  4. AmTran_Bus
    • one year ago
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    Ok. Give me a sec to type.

  5. AmTran_Bus
    • one year ago
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    Ignoring the whole 4 sec stuff |dw:1436283835864:dw|

  6. AmTran_Bus
    • one year ago
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    I'm still going

  7. AmTran_Bus
    • one year ago
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    |dw:1436283910258:dw|

  8. Loser66
    • one year ago
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    How can you go from the original one to it? |dw:1436284026292:dw|

  9. AmTran_Bus
    • one year ago
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    Oh no. Maybe that is my problem. I forget that sqrt.

  10. AmTran_Bus
    • one year ago
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    Wait.

  11. AmTran_Bus
    • one year ago
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    Ignore that.

  12. Loser66
    • one year ago
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    They assign you to use x =4sec (theta) . Why don't you use it?

  13. AmTran_Bus
    • one year ago
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    |dw:1436284192993:dw|

  14. AmTran_Bus
    • one year ago
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    I was hoping I could do the base integration first and kinda cheat.

  15. AmTran_Bus
    • one year ago
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    |dw:1436284294104:dw|

  16. AmTran_Bus
    • one year ago
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    I mean @Loser66 I'm also checking and getting this http://www.wolframalpha.com/input/?i=Integrate+%281%29%2F%28x%5E2sqrt%28x%5E2-16%29%29%2C+x+%3D+4+secant+theta so I kinda think im right?

  17. AmTran_Bus
    • one year ago
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    lol http://www.wolframalpha.com/input/?i=Integrate+%281%29%2F%284+secant+theta%5E2sqrt%284+secant+theta%5E2-16%29%29 So yea im pretty confident.

  18. AmTran_Bus
    • one year ago
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    internet is awful cutting out

  19. Loser66
    • one year ago
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    ok , you are right, but I would like to know how can you turn from sin (sec^- (x/4) ) to that result. To make sure that you can get it by hand, not cheat from wolfram

  20. AmTran_Bus
    • one year ago
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    From|dw:1436284669272:dw|

  21. Loser66
    • one year ago
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    yes

  22. AmTran_Bus
    • one year ago
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    Give me a bit

  23. AmTran_Bus
    • one year ago
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    |dw:1436284793682:dw|

  24. Loser66
    • one year ago
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    I don't get |dw:1436284904403:dw|

  25. Loser66
    • one year ago
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    Hint: \(x = 4 sec (theta) = \dfrac{4}{cos (theta)}\) \(\sqrt{x^2+16}=4tan(theta) =\dfrac{4sin(theta)}{cos(theta)}\) see the link?

  26. AmTran_Bus
    • one year ago
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    Oh!

  27. AmTran_Bus
    • one year ago
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    You aint nothing but a hound dog barking all the time you aint never caught a rabbit and you aint no friend of mine

  28. AmTran_Bus
    • one year ago
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    That is not directed at you loser 66, but at calc 2

  29. Loser66
    • one year ago
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    hey, what do you mean by "You aint nothing but a hound dog barking all the time you aint never caught a rabbit and you aint no friend of mine"?? are you insulting me?? because I am trying to help you out?? OMG

  30. AmTran_Bus
    • one year ago
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    Hahahahahahah nooo!! Elvis man!

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