IIT-JEE Exam

Let a, b, c
be unit vectors such that a + b + c = 0 . Which one of the following is correct?
(A) a × b = b × c = c × a = 0
(B) a × b = b × c = c × a ≠ 0(C) a × b = b × c = a × c = 0
(D) a × b, b × c, c × a are mutually perpendicular

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IIT-JEE Other Question

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