o is a point in the interior of triangle arc show that ob+oc <ab+ac
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In ∆ABD 1
AB+AD>BD
In ∆DOC. 2
OD+DC> OC
From 1 and 2
AB+AD+OD+DC>BD+OC
AB+AD+DC+OD>OB+OD+OC
AB+AC>OB+OC
AB+AD>BD
In ∆DOC. 2
OD+DC> OC
From 1 and 2
AB+AD+OD+DC>BD+OC
AB+AD+DC+OD>OB+OD+OC
AB+AC>OB+OC
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shristisingh31:
thanks
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