Question

Solution

Correct option is

None of these

The angle between is obtuse.  …(i)

The angle between and z-axis is acute and less than π/6.    Clearly, (i) and (ii) cannot hold together.

SIMILAR QUESTIONS

Q1

Let be three unit vectors such that angle between is If then cos α + cos β + cos γ =

Q2

Let be vectors of equal magnitude such that the angle between Then, the minimum value of the cos α + cos β + cos γ is

Q3

Let be three vectors of equal magnitude such that the angle between each pair is If Q4

If , then the value of is equal to

Q5

Angle between vectors are unit vectors satisfying Q6

The values of ‘a’ for which the points ABC with position vectors respectively are the vertices of a right angled triangle with C = π/2 are

Q7

The vectors are the adjacent sides of a parallelogram. Then, the acute angle between its diagonals is

Q8

If are two vectors such that then angle between Q9

The values of x for which the angle between the vectors is acute, and the angle between the vector and the axis of ordinates is obtuse, are

Q10

If are two unit vectors such that , then the angle between , is