Class CBSE Class 12 Mathematics Vector Algebra Q #1759
KNOWLEDGE BASED 2 Marks 2026 AISSCE(Board Exam) VSA
If $\vec{AB}=\hat{j}+\hat{k}$ and $\vec{AC}=3\hat{i}-\hat{j}+4\hat{k}$ represent the two vectors along the sides AB and AC of $\Delta ABC$, prove that the median $\vec{AD}=\frac{\vec{AB}+\vec{AC}}{2}$ where D is midpoint of BC. Hence, find the length of median AD.
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