#### Question

Find the direction cosines of the line perpendicular to the lines whose direction ratios are -2, 1,-1 and -3, - 4, 1

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Solution for question: Find the Direction Cosines of the Line Perpendicular to the Lines Whose Direction Ratios Are -2, 1,-1 and -3, - 4, 1 concept: Direction Cosines and Direction Ratios of a Line. For the courses HSC Arts, HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)