Test prep 23.09.07

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Test prep 23.09.07

by moneyman » Sun Sep 23, 2007 2:26 am
If ab is not equal to 0 and points (-a,b)(-b,a) are on the same quadrant on the xy plane, is point (-x,y) in this same quadrant??

(1)xy>0
(2)ax>0
Maxx
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