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NDA2012MathematicsThree Dimensional GeometryActual

What are the direction cosines of a line which is equally inclined to the positive directions of the axes?

Options

  1. A1 3 , 1 3 , 1 3
  2. B- 1 3 , 1 3 , 1 3
  3. C- 1 3 ,- 1 3 , 1 3
  4. D1 3 , 1 3 , 1 3

Correct answer

A. 1 3 , 1 3 , 1 3

Step-by-step solution

The correct answer is option A.

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