Question:medium

Let a, b, c be three vectors satisfying a × b = ( a × c), | a|=| c|=1, | b|=4 and | b × c|=√(15). If a · b = ?, then λ equals

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If a × x=0, then x ∥ a.

Updated On: Mar 20, 2026

\(1\)
\(-1\)
\(2\)
-4

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The Correct Option is B

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