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Mathematics 9 Online
OpenStudy (anonymous):

Even & Odd properties problem

OpenStudy (anonymous):

\[\int\limits_{-2}^{2} x ^{2} (x^{2}+1) DX\]

OpenStudy (anonymous):

Hey again John

OpenStudy (anonymous):

Hey Kuggy, had this problem come up and do not remember the properties at all

OpenStudy (anonymous):

So for this one, because the powers are positive, f(x) will be symmetric over the y-axis, Therefore int[-2,2]f(x)dx = 2int[0,2]f(x)dx

OpenStudy (anonymous):

So like, its a parabolic f(x), so itll be symmetrical over the y-axis... thats for EVEN powers.. even parabolas haha

OpenStudy (anonymous):

for Odd powers, the graph will be symmetric over the line y=x, which pretty much just means the integral of f(-x) is the same as - integral f(x)

OpenStudy (anonymous):

\[2 \int\limits_{0}^{2} f(x)DX\]

OpenStudy (anonymous):

im not sure i follow

OpenStudy (anonymous):

@Kuggy

OpenStudy (anonymous):

yeah that is right

OpenStudy (anonymous):

because like [-2,0] and [0,2] are the exact same amount when you do that integral, so you can just do from [0,2] and multiply by 2

OpenStudy (anonymous):

A walkthrough would be nice please

OpenStudy (isaiah.feynman):

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