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NDA 2017
Exam
NDA
Year
2017
Subject
Mathematics
Chapter
Three Dimensional Geometry

NDA 2017 · Mathematics · Three Dimensional Geometry

A straight line with direction cosines (0,1,0) is

A straight line with direction cosines (0,1,0)(0,1,0) is

Options

  1. Aparallel to xx-axis
  2. Bparallel to yy-axis
  3. Cparallel to zz-axis
  4. Dequally inclined to all the axes

Correct answer

B. parallel to yy-axis

Step-by-step solution

D.C's (0,1,0)(0,1,0) Since xx and zz are zero, the straight line is parallel to yy-axis
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