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Is n an integer? (1) n^2 is an integer (2) Root of n is an

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Is n an integer? (1) n^2 is an integer (2) Root of n is an [#permalink] New post 12 Nov 2005, 14:36
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Is n an integer?

(1) n^2 is an integer
(2) Root of n is an integer
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Re: OG: DS Integer [#permalink] New post 12 Nov 2005, 14:42
Blue agave wrote:
Is n an integer?

(1) n^2 is an integer
(2) Root of n is an integer


B.

1) Assume n^2 = 3

n = 3^(1/2) which is not integer.

2) If root of n is an integer then n is defintely an integer.
Re: OG: DS Integer   [#permalink] 12 Nov 2005, 14:42
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Is n an integer? (1) n^2 is an integer (2) Root of n is an

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