if vecu=hati+hatj , vecv=hati-hatj and v...

if `vecu=hati+hatj , vecv=hati-hatj` and `vecw=hati+2hatj+3hatk`.if `vecn`is unit vector such that `vecu.vecn=0` and `vecv.vecn=0`then find out `|vecw.vecn|`

A

3

B

0

C

1

D

2

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A

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