Vectors 3 Question 9

9. If a,b and c are unit coplanar vectors, then the scalar triple product [2ab2bc2ca] is

(2000, 2M)

(a) 0

(b) 1

(c) 3

(d) 3

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Answer:

Correct Answer: 9. (a)

Solution:

  1. If a,b,c are coplanar vectors, then 2ab,2bc and 2ca are also coplanar vectors.



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