The position vector of the middle point of the line joining the points – InterviewSolution

1.	The position vector of the middle point of the line joining the points 3i + j - k and i + 3j + k is :(A) 2i + j (B) 4i + 4j - 2k (C) 2i - 2j - 2k(D) None of these
Answer» Answer is (A) 2i + 2j

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