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NDA2017MathematicsThree Dimensional GeometryActual

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

Options

  1. Aparallel to x -axis
  2. Bparallel to y -axis
  3. Cparallel to z -axis
  4. Dequally inclined to all the axes

Correct answer

B. parallel to y -axis

Step-by-step solution

D.C's (0,1,0) Since x and z are zero, the straight line is parallel to y -axis

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