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If p,q,r, and s are nonzero numbers....

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Source: — Data Sufficiency |
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by amitansu » Mon Jun 02, 2008 3:13 am
B is ans here.

From the q itself we know square and 4th power of any no. would be positive.

So we are bothered about p and r here.The info is available @ stem 2.
Last edited by amitansu on Tue Jun 03, 2008 10:22 am, edited 1 time in total.
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by mehravikas » Tue Jun 03, 2008 2:58 am
Shit..How did miss that !!
amitansu wrote:B is ans here.

From the q itself we know square and 4th power of any no. would be positive.

So we are bothered about p and q here.The info is available @ stem 2.
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