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Question
(Mar-2006
... AB+ AC +AD
***5.In AABC. '0' is circumcentre. His
center then show that
DOA+OB+ OC = OH
Sol: 0) ODOB+OC
2
now OA+OB+OC = OA+2OD)
OA+AH = OH (20D = AH)
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