Gmatprep DS Inequality

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Source: — Data Sufficiency |

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by avenus » Fri Feb 13, 2009 4:09 pm
(x-2)^2 > 9

this inequality holds for two sets of values: x < -1 and x > 5

since we're told that x > 0, we have to go for x> 5 and therefore x > 3

does that help?

PS: I'm curious: if you were able to figure out the first, you should have no problem with the second. just have to follow the same reasoning... how come?

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by awesomeusername » Fri Feb 13, 2009 4:51 pm
Same as above, but I wanted to test out LaTeX :)
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eq.latex.gif