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Let A = [(4, 6, 6), (1, 3, 2), (-1, - 5, -2)]. If q is the angle between two non-zero column vectors X such

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Let A = [(4, 6, 6), (1, 3, 2), (-1, - 5, -2)]. If q is the angle between two non-zero column vectors X such that AX = λX for some scalar λ, then tanθ = ...

(a) 7/√202

(b) √3/19

(c) √(3/202)

(d) 7/19

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The correct option (b) √3/19

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