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# 0^0

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Intern
Joined: 03 Feb 2010
Posts: 11

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06 Apr 2010, 09:45
Can anyone tell me what is 0^0 for the GMAT?

Thanks

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Manager
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06 Apr 2010, 09:48
Good question. I thought it is 1. But not for sure. I will wait for other answers.

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Manager
Joined: 10 Aug 2009
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06 Apr 2010, 09:51
I might be wrong, but I think I remember reading that the GMAT stays away from 0^0.

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Math Expert
Joined: 02 Sep 2009
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06 Apr 2010, 14:23
jgras wrote:
Can anyone tell me what is 0^0 for the GMAT?

Thanks

0^0, in some sources equals to 1, some mathematicians say it's undefined. You won't need this for GMAT.

During the past decade, mathematicians argued extensively about the value of 0^0. Some answer that 0^0 = 1, while others answer that 0^0 is undefined. In the unlikely event that this question appears in some format or is a required intermediary calculation, the correct answer is more likely that 0^0 = 1.
http://www.platinumgmat.com/gmat_study_ ... ial_powers

and:
Note: the case of 0^0 is not tested on the GMAT.
http://www.manhattangmat.com/np-exponents.cfm

Hope it helps.
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Intern
Joined: 27 Jan 2012
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Schools: Cnsrtm-Hass '15

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08 Mar 2012, 19:37
So what about the structure x^y in a data sufficiency problem?

How would we consider the possibility of x and y being 0?

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Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
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09 Mar 2012, 01:16
bschoolnewbie2011 wrote:
So what about the structure x^y in a data sufficiency problem?

How would we consider the possibility of x and y being 0?

At least one of x and y would be given non-zero. Since GMAT doesn't test it, they will ensure that you don't have to take a call on the value of 0^0.
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Manager
Joined: 07 Feb 2012
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GMAT Date: 04-19-2012

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13 Mar 2012, 13:29
Technically 0^0 is 1.... Not sure gmat wise though. I had the same question with 0 times 0 which is in gmat terms = to 0, but I think its more complicated than that.

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Math Expert
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13 Mar 2012, 13:34
transfer9858 wrote:
Technically 0^0 is 1.... Not sure gmat wise though. I had the same question with 0 times 0 which is in gmat terms = to 0, but I think its more complicated than that.

The case of 0^0 is not tested on the GMAT.

0*0=0.
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25 May 2012, 04:50
Hi,

Consider the following equation,
$$a^m/a^n = a^(m-n)$$
we say $$a^0 = 1$$, 'casuse $$a^0 = a/a$$ $$|a|>0$$
so, $$0^0$$ would take form of $$0/0$$, which is not defined.

Also, please note that infinity and not defined (nd) are to different terms.

1/0 = infinity
(infinity x 0), (0/0) etc. are not defined.

Anyways, no one has to worry about n.d. forms as they are out of scope for GMAT.

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Re: 0^0   [#permalink] 25 May 2012, 04:50
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