BITSAT 2014 Paper

Section: Mathematics

Question : 115 of 150

Marks: +1, -0

If the middle points of sides BC, CA & AB of triangle ABC are respectively D, E, F then position vector of centre of triangle DEF, when position vector of A, B, C are respectively

1
3
(
^
i
+
^
j
+
^
k
)
(
^
i
+
^
j
+
^
k
)
2 (
^
i
+
^
j
+
^
k
)
2
3
(
^
i
+
^
j
+
^
k
)

Validate

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