The direction ratios of the lines x - y + z - 5 = 0 = x - 3y - 6 are

MHT CET Mathematics question

The direction ratios of the lines are

(A)Correct
(B)
(C)
(D)

Answer: (A)

Solution

The line is the intersection of the planes and , with normals and ; its direction is their cross product. $(1, -1, 1)×(1, -3, 0) = (0 + 3,\ 1 - 0,\ -3 + 1) = (3, 1,

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Question ID VK-027281