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Question

For any three vectors a,b,c,(ab).(bc)×(ca)=

A
0
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B
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C
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D
2
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Solution

The correct option is B 0
(ab).(bc)×(ca)
=∣ ∣110011101∣ ∣[abc]
=[1(10)+1(01)+0][abc]
=(11)[abc]=0

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