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Equidistant from Origin?

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Equidistant from Origin?

by aatech » Sun Jun 15, 2008 4:25 am
In the rectangular coordinate system, are the points (r,s) and (u,v) equidistant from the origin?

1) r+s=1

2) u=1-r and v = 1-s
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by anshul265 » Sun Jun 15, 2008 7:18 am
Answer C.

From 1, r+s=1
or r=1-s and s=1-r

From 2, we know, u=1-r and v=1-s
So, u=s and v=r

Thus they are equidistant from origin.
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by aatech » Sun Jun 15, 2008 8:05 am
aahhh.... I see my mistake.. thanks.. OA is C
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