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If A, B and C are the vertices of a triangle whose position vectors are
MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra
Problem If A, B and C are the vertices of a triangle whose position vectors are a \mathbf{a} a , b \mathbf{b} b and c \mathbf{c} c and G is the centroid of the Δ A B C \Delta ABC Δ A B C , then G A + G B + G C \mathbf{GA} + \mathbf{GB} + \mathbf{GC} GA + GB + GC is
(1) 0
(2) A + B + C \mathbf{A} + \mathbf{B} + \mathbf{C} A + B + C
(3) a + b + c 3 \frac{\mathbf{a} + \mathbf{b} + \mathbf{c}}{3} 3 a + b + c
(4) a + b − c 3 \frac{\mathbf{a} + \mathbf{b} - \mathbf{c}}{3} 3 a + b − c
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