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If a xx b = c and b xx c = a , then...

If `a xx b = c and b xx c = a` , then

A

a, b, c are orthogonal in pairs but `a|a| = |c|`

B

a, b, c are not orthogonal to each other

C

a, b, c ar orthogonal in a pairs and `|a| = |b| = |c| =1`

D

a, b, c are orthogonal but `|b| ne 1`

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The correct Answer is:
D
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