If the points with position vectors are collinear, then a is equal to
-40
-20
20
40
The position vectors of P and Q are respectively and . If R is a point on such that , then the position vector of R is
Given, , then x, y, z are respectively.
If then the angle between and is
45o
180o
60o
90o
A, B C, D, E, F in that order, are the vertices of a regular hexagon with centre origin. If the position vectors of the vertices A and B are respectively. is equal to
Let and , are non - zero and non- collinear vectors. If there exists scalars α, β such that α + β = , then
α = β ≠ 0
α + β = 0
α = β = 0
α = β
If the position vector of A with respect to O is then the position vector of B with respect to 0 is
If and are vectors such that , then the angle between and is
120o
30o
ABCD is a quadrilateral, P,Q are the midpoints of and , then is equal to
The projection of is