Find the position vector of a point R which divides the line joining t – InterviewSolution

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1.	Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are ^i+2^j−^k and −^i+^j+^k respectively, in the ratio 2:1 externally.
Answer» Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are $^i + 2^j -^k$ and $-^i +^j +^k$ respectively, in the ratio 2:1 externally.

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