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MHT CET202014 Oct 2020Morning ShiftMathematicsThree Dimensional GeometryActual

If the planes 2 x-5 y+z=8 and 2 x-15 y+ z+6=0 are parallel to each other, then value of is

Options

  1. A1 3
  2. B-3
  3. C2
  4. D3

Correct answer

D. 3

Step-by-step solution

Given planes are parallel. Therefore normal vector to their plane is also parallel. 2 2 = -5 -15 = 1 1 = 1 3 =3

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