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If the vectors `lambdaoverset(^)i+overset(^)j+2overset(^)k,overset(^)i+lambdaoverset(^)j-overset(^)k and 2overset(^)i-overset(^)j+lambdaoverset(^)k` are coplanar if

A

`lambda=-2`

B

`lambda=0`

C

`lambda=2`

D

`lambda=1`

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The correct Answer is:
A
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TARGET PUBLICATION-VECTORS-Competitive Thinking
  1. Let barA=overset(^)i+overset(^)j+overset(^)k,barB=overset(^)i,barC=C1o...

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  2. If the vectors 2overset(^)i-overset(^)j+overset(^)k,overset(^)i+2overs...

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  3. If the vectors lambdaoverset(^)i+overset(^)j+2overset(^)k,overset(^)i+...

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  4. If the vectors 4overset(^)i+11overset(^)J+moverset(^)k,7overset(^)i+2o...

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  5. If the vectors 2overset(^)i+2overset(^)j+6overset(^)k,2overset(^)i+lam...

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  6. If the four points with position vectors -2overset(^)i+overset(^)j+ove...

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  7. If the vectors bara=overset(^)i+overset(^)j+overset(^)k,barb=overset(^...

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  8. If the point having the position vectors 3overset(^)i-2overset(^)j-ove...

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  9. If bara,barb and barc are non-coplanar vectors and the four points wi...

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  10. If the vectors aoverset(^)i+overset(^)j+overset(^)k,overset(^)i+bovers...

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  11. The number of distinct real value of lambda, for which the vector -lam...

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  12. The number of distinct real values of lambda for which the vectors bar...

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  13. If bara,barb,barc are non coplanar vectros and lamda is a real number ...

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  14. If the origin and the point p(2,3,4),q(,1,2,3)R (x,y,z) are coplan...

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  15. A vector perpendicular to 2overset(^)i+overset(^)j+overset(^)k and cop...

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  16. Given three arbitary vectors bara,barb,barc, then vectors baralpha=5ba...

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  17. If barx.bara=0,barx.barb=0 and barx.barc=0 for some non-zero vectors x...

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  18. which of the following expression are meaningful?

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  19. Out of the following which one is not true?

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