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Question

If the vectors are mutually orthogonal, then (λ, μ) =

Options

A.(2, -3)
B.(-2, 3)
C.(3, -2)
D.(-3, 2)

Solution

              
⇒ 2λ + 4 + μ = 0       λ - 1 + 2μ = 0
Solving we get: λ = - 3, μ = 2

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