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

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SVP
Joined: 03 Feb 2003
Posts: 1603

Kudos [?]: 299 [0], given: 0

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

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06 Jun 2003, 00:41
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

A. Four
B. Three
C. Two
D. One
E. None

Kudos [?]: 299 [0], given: 0

Manager
Joined: 03 Jun 2003
Posts: 83

Kudos [?]: 1 [0], given: 0

Location: Uruguay

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06 Jun 2003, 12:56
I go with three either , 1, -1 and 0

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SVP
Joined: 03 Feb 2003
Posts: 1603

Kudos [?]: 299 [0], given: 0

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07 Jun 2003, 00:10
I told you that it is simple...

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Intern
Joined: 18 Feb 2005
Posts: 47

Kudos [?]: 10 [0], given: 0

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14 Mar 2006, 20:20
thank u guru stolyar!

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Intern
Joined: 15 Mar 2006
Posts: 18

Kudos [?]: [0], given: 0

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15 Mar 2006, 21:44
Ok, my analysis

0!=1! =1

Thus x can be 0, 1, -1

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Current Student
Joined: 29 Jan 2005
Posts: 5210

Kudos [?]: 432 [0], given: 0

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15 Mar 2006, 21:49
(B). We must know that 0!=1

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Manager
Joined: 30 Jan 2006
Posts: 144

Kudos [?]: 35 [0], given: 0

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16 Mar 2006, 11:54
A good one! I had no clue that 0! = 1

but now I know

thanks stolyar...

Kudos [?]: 35 [0], given: 0

16 Mar 2006, 11:54
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# X|!=1 —How many integer solutions are there? A. Four

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