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If veca, vecb, vecc are three non-coplan...

If `veca, vecb, vecc` are three non-coplanar vectors, then a vector `vecr` satisfying `vecr.veca=vecr.vecb=vecr.vecc=1`, is

A

`veca + 2vecb + 3vecc`

B

`vecb xx vecc + 2vecc xx veca + 3veca xx vecb`

C

`(vecb.vecc)veca+2(vecc.veca)vecb+3(veca.vecb)vecc`

D

None of these

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The correct Answer is:
B
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