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![[Post New]](/templates/default/images/icon_minipost_new.gif) 25 Mar 2008 19:42:14 IST
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2)
draw a square of side length (1-2x) concentric with this one, so that x is distance from each side
so the required point lies outside this square but within second square
area of small square=(1-2x)2
1-P=(1-2x)2/1
=1-4x+4X2
p=4x-4x2
=4x(1-x)
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