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Analytical Geometry

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 Joined: 10 Nov 2009 Post: 13
17 Dec 2009 18:42:50 IST
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ABC is an isosceles triangle with AB=AC and I as its incentre.AB+ A1=BC.Prove that angle BAC=90.(I N
Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Analytical Geometry

ABC is an isosceles triangle with AB=AC and I as its incentre.AB+ A1=BC.Prove that angle BAC=90.(I NEED A PURE GEOMETRY SOLUTION)

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Joined: 28 Apr 2009
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17 Dec 2009 18:49:05 IST
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RMO q-1

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17 Dec 2009 18:55:09 IST
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Blazing goIITian

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17 Dec 2009 19:51:29 IST
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checthisout  for oder methods and other rmo Qs

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17 Dec 2009 23:39:17 IST
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please provide a pure geometry solution.pleeeease

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