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This topic has 2 member replies
Joined
10 Dec 2006
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363 messages
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Thu Feb 15, 2007 3:31 pm
This if from one of the free CAT prep test

If a>b>0 then Sq.Root of the whole expression (a^2)-(b^2) is what

I am sorry but I don't rememebr the options and since I did not save my reuslts I cannot review this question. Thanks!

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Neo2000 Legendary Member
Joined
27 Jan 2007
Posted:
519 messages
31
Test Date:
30/09
Target GMAT Score:
710
Thu Feb 15, 2007 7:04 pm
This if from one of the free CAT prep test

If a>b>0 then Sq.Root of the whole expression (a^2)-(b^2) is what

I am sorry but I don't rememebr the options and since I did not save my reuslts I cannot review this question. Thanks!
This is of the form (a+b)(a-b)

Since a>b then a-b>0
and a+b is anyway>0

Therefore square root of a positive term is also >0

banona Senior | Next Rank: 100 Posts
Joined
30 Dec 2006
Posted:
38 messages
1
Thu Feb 15, 2007 6:45 pm
Can you rephrase the question, I didn't understand what you mean,
is it a PS or DS ? or what

Good luck

_________________
I appologize for my Frenchy-English.
I am working on it.

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