If is a vector of magnitude 21 and has direction ratios 2,-3,6, then value of is
Let , , be three non-zero vectors such that no two of these are collinear. If the vector + 2 is collinear with , then + 2 + 6 equals
λ (λ ≠ 0, a scalar)
0
If position vectors of A and B are , then magnitude of is
32
24
20
14
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
5 - 4
5 + 4
4 - 5
4 - 5c
If , then the magnitude of ( + ) is
13
-13
3
4
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, , then is equal to
The non-zero vectors , and are related by = 8 and = -7. Then, the angle between and is
π
π/4
π/2
If vectors from a triangle, then it is
equilateral
isosceles
right-angled
obtuse-angled
If , then the value of is
A vector whose magnitude is of unit length is called
zero vector
unit vector
position vector
collinear vector
