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# Is x^3*y^2*z > 0 ? 1)xyz > 0 2)x*Y^2 > 0 Thanks

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CEO
Joined: 15 Aug 2003
Posts: 3454

Kudos [?]: 919 [0], given: 781

Is x^3*y^2*z > 0 ? 1)xyz > 0 2)x*Y^2 > 0 Thanks [#permalink]

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09 Oct 2003, 17:04
00:00

Difficulty:

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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

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Is x^3*y^2*z > 0 ?

1)xyz > 0
2)x*Y^2 > 0

Thanks
Praetorian

Kudos [?]: 919 [0], given: 781

Manager
Joined: 26 Aug 2003
Posts: 232

Kudos [?]: 13 [0], given: 0

Location: United States

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09 Oct 2003, 17:48
E?

We have to find whether x and z are negative.

(1) Any two of those three could be negative.
(2) Ok, so x is not negative, but doesn't say anything about y.
(combined) x is positive but either y and/or z could be negative.

None works.

Kudos [?]: 13 [0], given: 0

09 Oct 2003, 17:48
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