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Question

Three non-zero vectors A,B & C satisfy the relation A.B=0 & A.C=0. Then A can be parallel to

A
B
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B
C
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C
B.C
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D
B×C
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Solution

The correct option is D B×C
Given A.B=0 & A.C=0 A is perpendicular to both B,C

We know that cross product of two vectors is perpendicular to both the vectors.
As B×C0 ,B×C is perpendicular to both B,C
So A parallel with B×C

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