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For how many integers n is −1 2 = n −1 ? (A) None (B) One (C) Two (D)
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16 Aug 2021, 01:35
16 Aug 2021, 01:35
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For how many integers n is \(−1^2 = n^{−1}\) ?
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
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Re: For how many integers n is −1 2 = n −1 ? (A) None (B) One (C) Two (D)
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16 Aug 2021, 21:55
16 Aug 2021, 21:55
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Carcass wrote:
For how many integers n is \(−1^2 = n^{−1}\) ?
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
\(−1^2 = n^{−1}\)
\(-1 = \frac{1}{n}\)
\(n = \frac{1}{-1} = -1\)
Hence, option B
gmatclubot
Re: For how many integers n is −1 2 = n −1 ? (A) None (B) One (C) Two (D) [#permalink]
16 Aug 2021, 21:55
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