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If `aoverset(^)i+overset(^)j+overset(^)k,overset(^)i-boverset(^)j+overset(^)k,overset(^)i+overset(^)j-coverset(^)k` are coplanar,
then `abc+2` is equal to

A

(a) `a+b-c`

B

(b) `a-b-c`

C

(c) `a+b+c`

D

(d) `a-b+c`

Text Solution

Verified by Experts

The correct Answer is:
B
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