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IF XY NOT EQUAL TO ZERO WHAT DOES IT MEAN : XY COULB BE

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Manager
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IF XY NOT EQUAL TO ZERO WHAT DOES IT MEAN : XY COULB BE [#permalink] New post 08 Apr 2008, 10:47
IF XY NOT EQUAL TO ZERO

WHAT DOES IT MEAN :

XY COULB BE NEGATIVE OR POSITIVE


OR XY MUST BE POSITIVE

PLS DESCRIBE IT ?
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Re: IF XY NOT EQUAL TO ZERO ? [#permalink] New post 08 Apr 2008, 10:52
Expert's post
"XY COULB BE NEGATIVE OR POSITIVE" :-D
Why do you ask this question? What is the GMAT problem?
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Re: IF XY NOT EQUAL TO ZERO ? [#permalink] New post 08 Apr 2008, 10:54
Agree, it means what it means, that it is not 0 but anything else, meaning positive and negative values.
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Re: IF XY NOT EQUAL TO ZERO ? [#permalink] New post 08 Apr 2008, 18:44
It also means neither X nor Y = 0
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Re: IF XY NOT EQUAL TO ZERO ? [#permalink] New post 08 Apr 2008, 18:54
shobuj wrote:
IF XY NOT EQUAL TO ZERO

WHAT DOES IT MEAN :

XY COULB BE NEGATIVE OR POSITIVE


OR XY MUST BE POSITIVE

PLS DESCRIBE IT ?


If you have any confusal like this, just ask!

"IF XY NOT EQUAL TO ZERO", it means that X and Y separately (you can think like that) must be anything except for ZERO. Because Either X or Y equals 0 will make XY equals ZERO.

So:
shobuj wrote:
XY COULB BE NEGATIVE OR POSITIVE


But It is not neccessary that

shobuj wrote:
OR XY MUST BE POSITIVE

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Re: IF XY NOT EQUAL TO ZERO ?   [#permalink] 08 Apr 2008, 18:54
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