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The position vector of a point R which d...

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

A

(a) `-3overset(^)i-overset(^)k`

B

(b) `3overset(^)i+overset(^)k`

C

(c) `2overset(^)i+overset(^)j-overset(^)k`

D

(d) None of these

Text Solution

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The correct Answer is:
A
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