Q42 of 138 Page 24

If are unit vectors, then find the angle between given that is a unit vector.

Given, and

By scalar product,


By substituting the values, we get




=1


3a2 -2√3 cos θ + b2 =1


⇒3-2√3 cos θ +1=1


⇒4-1=2√3 cos θ


⇒3=2√3 cos θ




More from this chapter

All 138 →
40

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

41

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

1

Mark the correct alternative in each of the following:

The vector satisfy the equation and where and If θ is the angle between , then


2

Mark the correct alternative in each of the following:

If then =