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Question

a¯0,b¯0,c0,a×b=0,¯b×c=0a×c=

A
b
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B
a
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C
0
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D
i+j+k
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Solution

The correct option is C 0
We know,
a×b=0 a=λb
And since b×c=0 c=λb
So, a×c=λ×λ×b×b=0
So, Option (C)

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