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is x>y?

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Manager
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is x>y? [#permalink] New post 29 May 2006, 01:58
Is x>y?
1.(x-y)(x-y)>0
2.y<0

Please explain?
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 [#permalink] New post 29 May 2006, 03:12
I'm sorry I misread st 1, so the explanation is not good, I still think the answer is E
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Last edited by thearch on 29 May 2006, 04:12, edited 1 time in total.
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 [#permalink] New post 29 May 2006, 03:15
Also got E.
Same reasoning as above.
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 [#permalink] New post 29 May 2006, 04:52
amansingla4 wrote:
Please explain.


St 1 doesn't help much
whatever square is positive

St 2 by itself is clearly insufficient

Combining doesn't yield any valuable additional piece of information

Right?
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 [#permalink] New post 29 May 2006, 07:32
Yeah it is E....no doubt
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 [#permalink] New post 29 May 2006, 08:44
I don't want to spoil the "E" party but I think is "A" (unless I am falling in a trap).

(x-y) (x-y) > 0 is equal to x>y.

so it should be sufficient.
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 [#permalink] New post 29 May 2006, 08:59
positive soul wrote:
I don't want to spoil the "E" party but I think is "A" (unless I am falling in a trap).

(x-y) (x-y) > 0 is equal to x>y.

so it should be sufficient.


amansingla4 wrote:
Is x>y?
1.(x-y)(x-y)>0
2.y<0


do this way:


st 1. (x-y)(x-y)>0
(x-y)^2 >0. now put some values for x and y, you find either is > than the other.

st 2. y<0 doesnot go anywhere.
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 [#permalink] New post 29 May 2006, 09:11
Thanks Prof. :-D
  [#permalink] 29 May 2006, 09:11
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