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MHT CET202123 Sep 2021Morning ShiftMathematicsThree Dimensional GeometryActual

If the lines x-1 2 = y+1 3 = z-1 4 and x-2 1 = y+m 2 = z-2 1 intersect each other, then value of m is

Options

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

Correct answer

D. -1

Step-by-step solution

Two intersection lines are x-1 2 = y+1 3 = z-1 4 = and x-2 1 = y+m 2 = z-2 1 = From (1) and (2) =0 and =-1 Then from (3), we get m=-1

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