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4Â¥: Originally posted by xxxfield at 2012-04-05 12:36:57:
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2Â¥: Originally posted by laosam280 at 2012-04-04 11:05:36:
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xxxfield

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3Â¥: Originally posted by shy1992331 at 2012-04-04 12:15:34:
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f(x)=6x, 0<=x<=1/3; =3(1-x), 1/3<=x<=1.
4Â¥2012-04-05 12:36:57
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