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MHT CET202013 Oct 2020Evening ShiftMathematicsThree Dimensional GeometryActual

If the lines x-1 5 = y+1 3 = 3-z and x+1 4 = 1-3 y 15 =z+1 are perpendicular to each other, then =

Options

  1. A2
  2. B3
  3. C5
  4. D4

Correct answer

C. 5

Step-by-step solution

Given lines are x-1 5 = y+1 3 = z-3 - and x+1 4 = y- 1 3 -5 = z+1 1 d.r. of the given lines are 5,3,- and 4,-5,1 These lines are er 5(4)+3(-5)+(- )(1)=0 20-15- =0 =5

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