Let `vec(r) ,vec(a),vec(b)` and ` vec(c)` be four non zero vectors such that `vec(r) * vec(a) = 0 , | vec(r) xx vec(

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Q 2241212123.     Let `vec(r) ,vec(a),vec(b)` and ` vec(c)` be four non zero vectors such that

`vec(r) * vec(a) = 0 , | vec(r) xx vec(b) | = | vec(r) | |vec(b) | , | vec(r) xx vec(c) | = | vec(r) | |vec(c) |` the `[ vec(a)vec(b)vec(c)]` is

equal to
A

`-1`

B

`0`

C

`1`

D

`2`

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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