Default
Question
Find the position vector of the midpoint of the vector joining the points P(2,3,4) and Q(4,1, -2).
Solution
The correct answer is 3ˆi+2ˆj+ˆk
Explanation
Let →OP=2ˆi+3ˆj+4ˆk and →OQ = 4ˆi+ˆj−2ˆk
Mid point of the vector joining the points P and Q
= →OP+→OQ2
= (2ˆi+3ˆj+4ˆk)+(4ˆi+ˆj−2ˆk)2
= 3ˆi+2ˆj+ˆk
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