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For how many integers n is (-1)^2 = n^(-1) ?

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For how many integers n is (-1)^2 = n^(-1) ?  [#permalink]

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New post Updated on: 16 Jul 2017, 03:35
1
00:00
A
B
C
D
E

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  5% (low)

Question Stats:

83% (00:50) correct 17% (01:04) wrong based on 59 sessions

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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

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Originally posted by sananoor on 16 Jul 2017, 02:29.
Last edited by Bunuel on 16 Jul 2017, 03:35, edited 1 time in total.
Renamed the topic and edited the question.
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Re: For how many integers n is (-1)^2 = n^(-1) ?  [#permalink]

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New post 16 Jul 2017, 03:40
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Re: For how many integers n is (-1)^2 = n^(-1) ?  [#permalink]

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New post 16 Jul 2017, 03:41
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Re: For how many integers n is (-1)^2 = n^(-1) ?   [#permalink] 16 Jul 2017, 03:41
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For how many integers n is (-1)^2 = n^(-1) ?

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