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If bara,barb,barc are three non-zero vec...

If `bara,barb,barc` are three non-zero vectors which are pairwise non-collinear. If `bara+3barb` is collinear with `barc and barb+2barc` is collinear with `bara`, then `bara+3barb+6barc` is

A

`barc`

B

`bar0`

C

`bara+barc`

D

`bara`

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The correct Answer is:
B
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