suju101
∫ab 3xdx evaluate using the method of summation.
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agreene
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\[\int_b^a 3xdx\]
is this the question?
suju101
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yes
suju101
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wait its b,a
agreene
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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
suju101
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|dw:1330414875053:dw|
agreene
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\[\int ^b_a 3xdx = \frac32 x^2 +c = \frac32 a^2-\frac32b^2+C\]
suju101
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but then what is the method of summation??
agreene
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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