Question

If  are two vectors such that  then angle between 

Solution

Correct option is

 

We have,   

         

Solving these two equations, we get   

      

SIMILAR QUESTIONS

Q1

Let  be three unit vectors such that  and  If  makes angles δ, β with  respectively, then  is equal to

Q2

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

Q3

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

Q4

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

Q5

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

Q6

If , then the value of  is equal to

Q7

Angle between vectors  are unit vectors satisfying 

Q8

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 

Q9

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

Q10

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