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Manipal MET2010MathematicsThree Dimensional Geometry

The direction cosines of any normal to the x y -plane are

Options

  1. A1,0,0
  2. B0,1,0
  3. C1,1,0
  4. D0,0,1

Correct answer

D. 0,0,1

Step-by-step solution

The equation of x y -plane is z=0 Direction cosines of its normal are 0,0,1 .

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