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+1 vote
20.8k views
in Mathematics by (54.1k points)

The vectors λi + j +2k, i + λj - k and 2i - j +λk  are coplanar if

(A) λ = –2 

(B) λ = 0 

(C) λ = 1

(D) λ = – 1

1 Answer

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Best answer

Answer is (A)

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