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Fraction reciprical problem

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Joined: 30 Dec 2011
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Fraction reciprical problem [#permalink]

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New post 13 Feb 2012, 07:41
This one should seem easy, but for some reason I can't get the right answer. Just a question from a random math site.

(1/(x^-2))^-3

Thanks,
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Re: Fraction reciprical problem [#permalink]

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New post 13 Feb 2012, 07:47
fcvald01 wrote:
This one should seem easy, but for some reason I can't get the right answer. Just a question from a random math site.

(1/(x^-2))^-3

Thanks,


\((\frac{1}{x^{-2}})^{-3}=(x^2)^{-3}=x^{2*(-3)}=x^{-6}=\frac{1}{x^6}\).

For more on the this subject check Exponents chapter of Number theory: math-number-theory-88376.html

Hope it helps.

P.S. Please post answer choices for PS problems, if available. If it's not a GMAT PS question then post it in Main Math Forum.
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Intern
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Joined: 30 Dec 2011
Posts: 33
GMAT Date: 02-11-2012
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WE: Law (Law)
Followers: 0

Kudos [?]: 8 [0], given: 8

Re: Fraction reciprical problem [#permalink]

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New post 13 Feb 2012, 08:05
Thank you, will do.
Re: Fraction reciprical problem   [#permalink] 13 Feb 2012, 08:05
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