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MHT CET202124 Sep 2021Evening ShiftMathematicsThree Dimensional GeometryActual

If the lines 2 x-4 = y-1 2 = z-3 1 and x-1 1 = 3 y-1 = z-2 1 are perpendicular to each other, then =

Options

  1. A-7 6
  2. B6 7
  3. C-6 7
  4. D7 6

Correct answer

C. -6 7

Step-by-step solution

Lines 2(x-2) = y-1 2 = z-3 1 and x-1 1 = 3 (y- 1 3 ) = z-2 1 are perpendicular to one another. aligned & ( 2 )(1)+(2) ( 3 )+(1)(1)=0 & 2 + 2 3 =-1 = -6 7 aligned

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