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MHT CET202019 Oct 2020Morning ShiftMathematicsThree Dimensional GeometryActual

The distance of a point (1,2,-1) from the plane x-2 y+4 z+10=0 is

Options

  1. A3 7 units
  2. B3 7 units
  3. C7 3 units
  4. D3 7 units

Correct answer

D. 3 7 units

Step-by-step solution

(D) aligned Required distance &= |1(1)+-2(2)+4(-1)+10| 1²+(-2)²+(4)² &= 3 21 = 3 7 units aligned

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