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If m^(-1) = -1/3 then m^(-2) is equal to

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If m^(-1) = -1/3 then m^(-2) is equal to [#permalink] New post 20 Dec 2012, 06:23
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Question Stats:

84% (01:30) correct 16% (00:34) wrong based on 364 sessions
If m^(-1) = -1/3 then m^(-2) is equal to

(A) -9
(B) -3
(C) -1/9
(D) 1/9
(E) 9
[Reveal] Spoiler: OA
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Re: If m^(-1) = -1/3 then m^(-2) is equal to [#permalink] New post 20 Dec 2012, 06:25
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If m^(-1) = -1/3 then m^(-2) is equal to [#permalink] New post 27 Feb 2014, 19:20
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Walkabout wrote:
If m^(-1) = -1/3 then m^(-2) is equal to

(A) -9
(B) -3
(C) -1/9
(D) 1/9
(E) 9



\(\frac{1}{m} = \frac{-1}{3}\)

Squaring both sides

\(\frac{1}{m^2} = \frac{1}{9} =\)Answer = D
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If m^(-1) = -1/3 then m^(-2) is equal to   [#permalink] 27 Feb 2014, 19:20
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