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If bara=overset(^)i+overset(^)j-2overset...

If `bara=overset(^)i+overset(^)j-2overset(^)k,barb=2overset(^)i-overset(^)j+overset(^)k and barc =3overset(^)i+overset(^)k and barc=mbara+nbarb` then ` m+n`

A

0

B

1

C

2

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
C
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