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Analytical Geometry

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Joined:	19 Aug 2007
Post:	50

24 Oct 2007 20:38:01 IST

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1 .show that the lines 4x+y=9,5x-y=6& 5x-y=14 make equal intercepts on any line of gradient 2.

2. if P,Q,R ARE ANY 3 points on the curve whose equation is xy=c²then prove that the ortocentre of triangle PQR also lies on that curve.

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