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# is integer P positive? (1) sqrt P = P^2 (2) =1

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is integer P positive? (1) sqrt P = P^2 (2) =1 [#permalink]  15 May 2003, 06:40
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50% (02:03) correct 50% (00:44) wrong based on 2 sessions
is integer P positive?

(1) sqrt P = P^2
(2) [P]=1
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Since the GMAT doesn't cover complex numbers (i.e. square roots of negatives) isn't the answer simply A?
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1. though u dont take negative square roots, from one u get P= 0 or 1.
1 is positve but 0 is neither positive nor negative - so u cant say

2. |P|=1 from this P can be 1(positive) or -1(negative)

from 1 & 2 P=1
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kdog3490 wrote:
Since the GMAT doesn't cover complex numbers (i.e. square roots of negatives) isn't the answer simply A?

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