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Mathematics 14 Online
OpenStudy (anonymous):

Find the average value of the function f(x) = (2x - 5)^2 on the interval [1, 2].

OpenStudy (anonymous):

integrate, then divide by 1 which really just means integrate

OpenStudy (anonymous):

\[\int_1^2(2x-5)^2dx\]

OpenStudy (anonymous):

really? cool!

OpenStudy (anonymous):

use a simple u-sub or just multiply out and integrate term by term

OpenStudy (anonymous):

what "section" is this in? I don't remember this in integration...

OpenStudy (anonymous):

answer is \[\frac{13}{3}\]

OpenStudy (anonymous):

HA! I just opened right to it! lol

OpenStudy (anonymous):

approximate integration...

OpenStudy (anonymous):

average value is integral divided by length of path

OpenStudy (anonymous):

Length of x value? or hypotenuse

OpenStudy (anonymous):

yea, length of straight path... anyway, thx

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