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# DS- Coordinates

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Joined: 21 Apr 2006
Posts: 18
Location: San Francisco, CA
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DS- Coordinates [#permalink]  22 Jun 2006, 10:34
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Would you use the distance formula to solve for this? The ponits are equidistant if sqrt(r^2+u^2)=sqrt(s^2+v^2). So from 1 & 2, I plugged the data and got r^2=s^2+1.

Thus, they are not equidistant. Can someone please tell me if I calculated this right?

One day till judgement day,
Tru
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VP
Joined: 15 Jun 2006
Posts: 1124
Schools: Chicago Booth
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I) not suff
II) not suff

I+II) from I) r+s=1
or
r=1-s=v
s=1-r=u

they are equidistant!

C)
Director
Joined: 06 May 2006
Posts: 780
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Yes it C. Explanation as provided by Helg.
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