Q2 of 138 Page 24

Mark the correct alternative in each of the following:

If then =


Here, __________(1)


_________(2)


and _________(3)


From (2),



(____________(4)


From (3) and (4)


()


)


So,


More from this chapter

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42

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

 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


3

Mark the correct alternative in each of the following:

If then the angle between is


 4

Mark the correct alternative in each of the following:

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