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Question

If the vectors 3i+4j+λk and μi+8j+6k are collinear vectors, then find λ and μ.

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Solution

∣ ∣ ∣ˆiˆjˆk34λμ86∣ ∣ ∣=0ˆi(248λ)ˆj(18μλ)+ˆk(244μ)=0248λ=0λ=34μ=24μ=6

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