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If a=hati+2hatj+3hatk,b=-hati+2hatj+hatk...

If `a=hati+2hatj+3hatk,b=-hati+2hatj+hatk and c=3hati+hatj`, then the unit vector along its resultant is

A

`3hati+5hatj+4hatk`

B

`(3hati+5hatj+4hatk)/(50)`

C

`(3hati+5hatj+4hatk)/(5sqrt(2))`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
`R=3hati+5hatj+4hatk`
`impliesR=(3hati+5hatj+4hatk)/(5sqrt(2))`.
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