L and M are two points with position vectors `2vec(a)-vec(b)andvec(a)+2vec(b)`, respectively. The position vector of the pont N which divides the line segment LM in the ratio 2:1 externally isA. `3bar(b)`B. `4bar(b)`C. `5bar(b)`D. `3bar(a)+4bar(b)`

L and M are two points with position vectors `2vec(a)-vec(b)andvec(a)+

1.	L and M are two points with position vectors `2vec(a)-vec(b)andvec(a)+2vec(b)`, respectively. The position vector of the pont N which divides the line segment LM in the ratio 2:1 externally isA. `3bar(b)`B. `4bar(b)`C. `5bar(b)`D. `3bar(a)+4bar(b)`
Answer» Correct Answer - C

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