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If bara is a unit vector then baraxx{bar...

If `bara` is a unit vector then `baraxx{baraxx(baraxxbarb)}=`

A

`baraxxbarb`

B

`barbxxbara`

C

`2(baraxxbarb)`

D

`2(barbxxbara)`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-MULTIPLE PRODUCT OF VECTORS-EXERCISE -II
  1. bara, barb, barc are three unit vectors, barb is not parallel to barc ...

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  2. Let bara,barb and barc be non-zero vectors such that (baraxxbarb)xxbar...

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  3. If bara is a unit vector then baraxx{baraxx(baraxxbarb)}=

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  4. baraxx(barbxxbarc)+barbxx(barcxxbara)+barcxx(baraxxbarb)=

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  5. If (baraxxbarb)xxbarc=baraxx(barbxxbarc) where bara,barb,barc are any ...

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  6. If bara, barb are two non-zero vectors and c is nonzero scalar, and ba...

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  7. bari, barj, bark is a right handed orthonormal system of vectors and b...

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  8. The vectors baraxx(barbxxbarc),barbxx(barcxxbara).barcxx(baraxxbarb) a...

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  9. If veca,vecb,vecc,vecd are coplaner vectors, then (vecaxxvecb)xx(veccx...

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  10. If bara =bari -2barj-3bark,barb =2bari + barj-bark, barc = bari +3barj...

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  11. If vecbara=2bari+3barj-4bark,vecb=bari+barj+bark,vecc=4bari+2barj+3bar...

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  12. Let bara=2bari+barj-2bark,barb=bari+barj. If barc is a vector such tha...

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  13. If baraxx(barbxxbarc)=(baraxxbarb)xxc' then which of the following is ...

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  14. If bara,barb are two units vectors inclined at an angle pi/3 then {axx...

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  15. sum[(baraxxbari)xxbarj]^(2)=

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  16. [barb barc barbxxbarc]+{barb.barc}^(2)=

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  17. If bara=bari+barj-bark,barb=bari-barj+bark,barc is a unit vector perpe...

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  18. (barbxxbarc).(axxbard)+(barcxxbara).(barbxxbard)+(baraxxbarb).(barcxxb...

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  19. If bara is parallel to barbxxbarc then (baraxxbarb).(baraxxbarc))=

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  20. If bara, barb lie in a plane, normal to the plane containing barc, bar...

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