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Consider a \triangle ABC where A(1,3,2), B(-2,8,0) and C(3,6,7). If the angle bisector of \angle BAC meets the line BC at D, then the length of the projection of the vector \overrightarrowAD on the vector \overrightarrowAC is: | Watch the step-by-step video solution for this NIMCET PYQ.