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A vector perpendicular to 2overset(^)i+o...

A vector perpendicular to `2overset(^)i+overset(^)j+overset(^)k` and coplanar with
`overset(^)i+2overset(^)j+overset(^)k and overset(^)i+overset(^)j+2overset(^)k` is

A

(a) `5(overset(^)j-bark)`

B

(b) `overset(^)i+7overset(^)j-overset(^)k`

C

(c) `5(overset(^)j+overset(^)k)`

D

(d) `2overset(^)i-7overset(^)j-overset(^)k`

Text Solution

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The correct Answer is:
A
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