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A : Angle between the vectors I - 2j + k...

A : Angle between the vectors I - 2j + k, 2i - j - k is `(pi)/(3)`.
R : If `theta` is the angle between a,b then cos `theta = (a.b)/(|a||b|)`

A

both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is not correct explanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
A
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