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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

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

B

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

C

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

D

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

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The correct Answer is:
A
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TARGET PUBLICATION-VECTORS-Competitive Thinking
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  11. If bara,barb and barc are non-coplanar, then the value of bara.{(barbx...

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  12. bara.[barb+barc)xx(bara+barb+barc)] is equal to

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  13. (bara+barb).(barb+barc)xx(bara+barb+barc)=

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  14. If bara=(1)/(sqrt10)(3overset(^)i+overset(^)k),barb=1/7(2overset(^)i+3...

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  16. If vecu, vecv, vecw are three non-coplanar vectors, the (vecu+vecv-vec...

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  18. If a, b and c are non-coplanar vectors and d=lambdaa+mub+nuc, then lam...

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