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Let vecr, veca, vecb and vecc be four no...

Let `vecr, veca, vecb` and `vecc` be four non-zero vectors such that `vecr.veca=0, |vecrxxvecb|=|vecr||vecb|,|vecrxxvecc|=|vecr||vecc|` then
`[(veca, vecb, vecc)]=`

A

|a||b||c|

B

`-|a||b||c|`

C

0

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
c
`vecr.veca = 0, |vecr xx vecb| = |vecr||vecb| and |vecr xx vecc|`
`|vecr||vecc|`
` [ veca vecb vecc] =0`
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CENGAGE PUBLICATION-DIFFERENT PRODUCTS OF VECTORS AND THEIR GEOMETRICAL APPLICATIONS -Exercises MCQ
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  10. If vecb and vecc are unit vectors, then for any arbitary vector veca,...

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  11. If veca .vecb =beta and veca xx vecb = vecc ," then " vecb is

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  13. If ( vec axx vec b)xx( vec bxx vec c)= vec b ,w h e r e vec a , vec b ...

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  14. If vecr.veca=vecr.vecb=vecr.vecc=1/2 for some non zero vector vecr and...

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  16. If vec aa n d vec b are two unit vectors incline at angle pi//3 , ...

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  17. If veca and vecb are othogonal unit vectors, then for a vector vecr no...

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  18. If veca,vecb ,vecc are any three non- coplanar vectors then the equa...

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  19. Solve the simultaneous vector equations for vecx and vecy: vecx+veccxx...

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