Question

Let  be three vectors such that  and  If 

Solution

Correct option is

 

We have,   

            

  

  

SIMILAR QUESTIONS

Q1

If the unit vectors  are inclined at an angle 2θ such that  then θ lies in the interval 

Q2

Let  be two unit vectors and α be the angle between them, then  is a unit vector, if α =

Q3

If  then the angle between  

Q4

Let  are two vectors inclined at an angle of 60o. If  then the angle between   

Q5

If  are unit vectors such that  is also a unit vector, then the angle between , is

Q6

If  are unit vectors such that 

Q7

If  are unit vectors such that  and  then 

Q8

If  are unit vectors inclined to x-axis at angles 30o and 120o, then  equals

Q9

If  are three vectors such that 

Q10

If two out of the three vectors  are unit vectors such that  then the length of the third vector is