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suju101

  • 4 years ago

∫ab 3xdx evaluate using the method of summation.

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  1. agreene
    • 4 years ago
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    \[\int_b^a 3xdx\] is this the question?

  2. suju101
    • 4 years ago
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    yes

  3. suju101
    • 4 years ago
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    wait its b,a

  4. agreene
    • 4 years ago
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    int 3x dx = 3/2 x^2 +C evaluate in terms of a-b 3/2 a^2 - 3/2 b^2

  5. suju101
    • 4 years ago
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    |dw:1330414875053:dw|

  6. agreene
    • 4 years ago
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    \[\int ^b_a 3xdx = \frac32 x^2 +c = \frac32 a^2-\frac32b^2+C\]

  7. suju101
    • 4 years ago
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    but then what is the method of summation??

  8. agreene
    • 4 years ago
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    oh bleh, didnt read that part.. you'll have to use Riemann Sums, I honestly dont remember how to do them by hand anymore... if I ever need one I let my computers do it, lol. http://en.wikipedia.org/wiki/Riemann_sum

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