KEAM 2015 Math Paper

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Question : 94 of 120

Marks: +1, -0

Let the position vectors of the points A, B and C be

→

a

,

→

b

and

→

c

respectively. Let Q be the point of intersection of the medians of the triangle ΔABC. Then

–––

QA

+

–––

QB

+

–––

QC

=

→
a
+
→
b
+
→
c
2
2
→
a
+
→
b
+
→
c
→
a
+
→
b
+
→
c
→
a
+
→
b
+
→
c
3
→
0

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