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Analytical Geometry

Cool goIITian

Joined:	11 Jun 2007
Post:	42

12 Nov 2007 20:54:49 IST

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392

pair of at lines

None

if the pair of st lines ax^2+2(a+b)xy+by^2=0 lie along the diameters of a circle and divide the circle into 4 sectors such that area of one is thrice the other then relation b/w a&b is

1) 3a^2 + 2ab +3b^2 2) 3a^2 -10ab +3b^2

3)3a^2 +10ab +3b^2 4) 3a^2 - 2ab +3b^2

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