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

If ` a xx b = c, b xx c = a` and a, b,c be moduli of the vectors a, b,c respectively, then

A

a=1, b=c

B

c=1, a=1

C

b=2, c=2a

D

b=1, c=a

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The correct Answer is:
D
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