The direction cosine of any line parallel to x-axis is :(A) (1,0,0)(B) – InterviewSolution

1.	The direction cosine of any line parallel to x-axis is :(A) (1,0,0)(B) (1,1,1)(C) (0,1,0)(D) None of these
Answer» Answer is (A) (1,0,0)

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