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Find integer X. (1) |X+2|=|X| (2) |X^X|=1

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stolyar
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Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 01:49
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Find integer X.

(1) |X+2|=|X|
(2) |X^X|=1



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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 05:13
Stolyar I wpould go with A. As only -1 can satisfy both the modulous. Statement 2 isnt possible as there can be two values for X in that case 1 and -1.

Let me know the right answer. Agood question though

cheers
neeraj
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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 07:09
I'd say A too. :!:
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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 08:37
Guys, please, help! 0^0=? :oops:
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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 09:12
I checked and it is 0... infact I asked my younger sis ; )
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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 10:47
bono wrote:
Guys, please, help! 0^0=? :oops:


I highly object to such questions testing the limits outside of GMAT requirements. In fact, such questions should not be allowed because they only confuse people!!!
:no :stupid :barbarian :knight
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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink] New post   09 Oct 2003, 11:59
We discussed this matter many, many times, but you, guys, were not with us. Therefore, I say a gist of our long previous discussions: open up any school math book and make sure that 0^0 makes NO SENSE and so can be safely ignored. It is also helpful to memorize the definition of the zeroth power. Only then are you welcome to object.

Moreover, even if we admit that 0^0=1, this fact would not harm the answer A. I hope I have dismissed any further claims!!!



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Re: Find integer X. (1) |X+2|=|X| (2) |X^X|=1 [#permalink]
09 Oct 2003, 11:59
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