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Find position vector of a point which divides the line joining two points internally externally
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ncert solution of class 12 maths chapter 10 Exercise 10.2 Question 15. Find the position vector of a point R which divides the line joining two points P and Q whose position vectors arei + 2j – k and –i + j+k respectively, in the ratio 2 : 1 internally (ii) externally.
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