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If vectors overset(^)i+overset(^)j+overs...

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

A

`3/2`

B

3

C

`-3`

D

0

Text Solution

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The correct Answer is:
A
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