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Find the position vector of a point R wh...

Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are `hat i + 2 hat j - hat k` and `- hat i + hat j + hat k` respectively, in the ratio 2 : 1
(i) internally (ii) externally

Text Solution

Verified by Experts

The correct Answer is:
(i) `(-1)/(3) hat i + (4)/(3) hat j + (1)/(3) hat k`
(ii)`- 3 hat i + 3 hat k`
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