Show that the lines L₁ : x = 5 – t, y = 2t, z = 1+t and L₂: x = 1+2t, y = 3-4t, z = 5 - 2t are parallel and find the distance between them. NOTE: Enter the exact answer. L₁ and L2 are parallel because they are parallel to vectors v₁ and v2 that satisfy : V1 V₂=0 D

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