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X|!=1 —How many integer solutions are there? A. Four

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SVP
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Joined: 03 Feb 2003
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X|!=1 —How many integer solutions are there? A. Four [#permalink] New post 05 Jun 2003, 23:41
|X|!=1 —How many integer solutions are there? :teleport

A. Four
B. Three
C. Two
D. One
E. None
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 [#permalink] New post 06 Jun 2003, 11:56
I go with three either , 1, -1 and 0
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 [#permalink] New post 06 Jun 2003, 23:10
I told you that it is simple...
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 [#permalink] New post 14 Mar 2006, 19:20
thank u guru stolyar!
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 [#permalink] New post 15 Mar 2006, 20:44
Ok, my analysis

0!=1! =1

Thus x can be 0, 1, -1
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 [#permalink] New post 15 Mar 2006, 20:49
(B). We must know that 0!=1
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 [#permalink] New post 16 Mar 2006, 10:54
A good one! I had no clue that 0! = 1

but now I know :wink:

thanks stolyar...
  [#permalink] 16 Mar 2006, 10:54
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X|!=1 —How many integer solutions are there? A. Four

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