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bara.(baraxxbarb)=...

`bara.(baraxxbarb)=`

A

`barb.barb`

B

`bar(a^2).barb`

C

0

D

`bara^2+bara.barb`

Text Solution

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The correct Answer is:
C
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TARGET PUBLICATION-VECTORS-Competitive Thinking
  1. Out of the following which one is not true?

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  2. For three vectors vecu,vecv,vecw which of the following expressions is...

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  3. bara.(baraxxbarb)=

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  4. If bara,barb,barc are non-coplaner vectors, then (bara.barbxxbarc)/(...

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  5. If bara,barb and barc are non-coplanar, then the value of bara.{(barbx...

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

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

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

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  9. If barp=(barbxxbarc)/(bara" "barb" "barc),barq=(barcxxbara)/(bara" "ba...

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

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  11. If bara,barb,barc are three non-coplanar vectors and barp,barq,barr ar...

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

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  13. If vecu, vecv, vecw are non -coplanar vectors and p,q, are real numbe...

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  14. If bara,barb,barc are non-coplanar vectors and lambda is a real number...

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  15. If the vectors 2overset(^)i-3overset(^)j,overset(^)i+overset(^)j-overs...

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  16. The volumes of the parallelopiped whose edges are represented by bara=...

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  17. If the volume of the tetrahedron formed by the coterminus edges bara,b...

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  18. The volume of a parallelopiped whose edges are represented by -12bar ...

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  19. If the three co-terminous edges of a paralleloP1ped are represented by...

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  20. If bara=2overset(^)i-3overset(^)j+5overset(^)k,barb=3overset(^)i-4over...

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