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Let a, b and c be non-zero vectors and |...

Let a, b and c be non-zero vectors and `|a|=1 and r` is a non-zero vector such that `rtimesa=b and r*c=1`, then

A

`abotb`

B

`rbotb`

C

`r*a=(1-[a b c])/(a*b)`

D

[r a b]=0

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The correct Answer is:
A, B, C
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