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If vec a , vec ba n d vec c are unit co...

If ` vec a , vec ba n d vec c` are unit coplanar vectors, then the scalar triple product `[2 vec a- vec b2 vec b- vec c2 vec c- vec a]` is `0` b. `1` c. `-sqrt(3)` d. `sqrt(3)`

A

0

B

1

C

`-sqrt(3)`

D

`sqrt(3)`

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