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If x^2 = integer, is x always an integer

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If x^2 = integer, is x always an integer [#permalink] New post 04 Jul 2004, 20:41
If x^2 = integer, is x always an integer?
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 [#permalink] New post 04 Jul 2004, 20:44
if x^2= 3

x is not a integer

if x^2= 4

x is a integer
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Re: integer query [#permalink] New post 04 Jul 2004, 23:47
Anonymous wrote:
If x^2 = integer, is x always an integer?


Of course, not, for instance, x = sqrt(2), x^2 = 2.

Conversely, if x is an integer, x^2 is an also integer.
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 [#permalink] New post 07 Jul 2004, 09:35
whenver it goz X^2 always head for any number just any number cos root of any numbr cud give U a perfect number which is an INTEGER...

for ex... root 2, root 3 and any root ... will giv ya the inetegr...

ash was perfect ans so was miss smashing ...

when X an integr ... IS X^2 an integer... then U will always have an integer cos an ineteger multiplied by the same is = integr...

hope that helps!
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  [#permalink] 07 Jul 2004, 09:35
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If x^2 = integer, is x always an integer

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