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NDA2012MathematicsThree Dimensional GeometryActual

If a line OP of length r (where ' O ' is the origin) makes an angle with x -axis and lies in the x z -plane, then what are the coordinates of P ?

Options

  1. A(r , 0, r )
  2. B(0,0, r )
  3. C(r , 0,0)
  4. D(0,0, r )

Correct answer

A. (r , 0, r )

Step-by-step solution

The coordinate of P will be (r , 0, r ) y coordinate will be zero.

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