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The position vectors of A and B are hati...

The position vectors of A and B are `hati-hatj+2hatk and 3hati-hatj+3hatk`. The position vector of the middle points of the line AB is

A

`(1)/(2)hati-(1)/(2)hatj+hatk`

B

`2hati-hatj+(5)/(2)hatk`

C

`(3)/(2)hati-(1)/(2)hatj+(3)/(2)hatk`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`(a+b)/(2)=2hati-hatj+(5)/(2)hatk`.
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