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I JUST got here.
![]() Join Date: May 2009
Posts: 26
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Points on a line
I'm writing this from memory:
Three points X, Y, Z are on a line k, a forth point W is not on k. When WX = WZ, which of the following must be true: [ 5 Answers in the form of inequalities: WY > WX, etc ] My question is: What does WX mean? Scalar product of W and X? Length of vector WX? I was totally confused by this question (came on my GMAT, so I don't know the exact answer choices anymore and don't have an OA). I didn't find a correct answer with scalar product, and then tried length. Wasted a lot of time on this question .Maybe someone can shed a light on how to solve this. Thanks |
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