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anonymous

  • 5 years ago

Integral from 1 to 2 of ( v (e-e inverse) dv

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  1. anonymous
    • 5 years ago
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    \[\int\limits_{1}^{2}v (e-e^-1)\]

  2. anonymous
    • 5 years ago
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    easy

  3. amistre64
    • 5 years ago
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    e is a constant; and so is 1/e

  4. anonymous
    • 5 years ago
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    2 ( e-e^-1 )

  5. anonymous
    • 5 years ago
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    wait thats wrong lol

  6. anonymous
    • 5 years ago
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    take the constant out

  7. amistre64
    • 5 years ago
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    might as well ask what is the integral of 4v dv :)

  8. anonymous
    • 5 years ago
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    integral v from 2 to 1

  9. anonymous
    • 5 years ago
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    (1/2) [ 4-1] = 3/2 so \[\frac{3}{2} (e - e ^{-1})\]

  10. anonymous
    • 5 years ago
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    ^ answer

  11. amistre64
    • 5 years ago
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    \[F(v)=\frac{v^2(e-e^{-1})}{2} |_{1}^{2}\]

  12. amistre64
    • 5 years ago
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    e - (1/e) = (e^2 - 1)/e right?

  13. anonymous
    • 5 years ago
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    So don't treat v as a constant

  14. anonymous
    • 5 years ago
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    its dv on the end

  15. amistre64
    • 5 years ago
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    v is the variable here

  16. anonymous
    • 5 years ago
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    Ok

  17. anonymous
    • 5 years ago
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    So which answer is correct

  18. amistre64
    • 5 years ago
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    4.7008047745751485263396882938069 -1.1752011936437871315849220734517 -------------------------------------- 3.525603580931361394754766220355 is what i get :)

  19. anonymous
    • 5 years ago
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    :|

  20. amistre64
    • 5 years ago
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    F(2) - F(1)

  21. anonymous
    • 5 years ago
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    stuff like that is what puts people off maths ^ :|

  22. anonymous
    • 5 years ago
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    no one cares about the numbers, especially to 20 decimal places , the final number doesnt matter , its how you go the number that matters Whenever you have e's or \[\pi\] in the answer then the answer should be given as exact value

  23. anonymous
    • 5 years ago
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    are you in kindergarten amistre lol

  24. amistre64
    • 5 years ago
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    i gave the exact and the approximate; or so i thought....

  25. amistre64
    • 5 years ago
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    i even gave a reason of "how" it is obtained.... right?

  26. anonymous
    • 5 years ago
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    your like the guys that memorise pi to 1000's of demical places

  27. amistre64
    • 5 years ago
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    lol.... 7 digits on pi :) e = 2.71828182845905... is that best i got with that one :)

  28. anonymous
    • 5 years ago
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    never give an answer to 20decimal places, makes you lokok like an idiot, 2 ( maybe 3 ) max , no one cares bout the rest. When a person that is new to maths sees something really long and unneccessary like that it is sure to put them off

  29. anonymous
    • 5 years ago
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    *look like .....

  30. amistre64
    • 5 years ago
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    i dont have to include decimals to look like an idiot; im a pro at that regardless :) and i figured that if they are asking calculus questions then they arent all that new to math...

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