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# ds og 1O TH 245

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Manager
Joined: 05 Oct 2005
Posts: 200
ds og 1O TH 245 [#permalink]

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05 Dec 2005, 11:10
00:00

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

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Is 1/a-b<b-a?

St1 a<b

St2 1< ABSOLUTE VALUE OF a-b

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VP
Joined: 06 Jun 2004
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Location: CA
Re: ds og 1O TH 245 [#permalink]

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05 Dec 2005, 20:16
Is 1/(a-b)<(b-a)?

(1) a<b ==> a-b<0 or b-a>0 ==> 1/-ve < +ve. Sufficient.
(2) 1<|a-b| ==> a-b<0 or a-b>0. Insufficient.

Re: ds og 1O TH 245   [#permalink] 05 Dec 2005, 20:16
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