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JEE Main20245 Apr 2024Evening ShiftMathematicsThree Dimensional GeometryActual

Let ( , , ) be the image of the point (8,5,7) in the line x-1 2 = y+1 3 = z-2 5 . Then + + is equal to :

Options

  1. A16
  2. B20
  3. C14
  4. D18

Correct answer

C. 14

Step-by-step solution

aligned & AM (2 i +3 j +5 k )=0 & (2 -7)(2)+(3 -6)(3)+(5 -5)(5)=0 & 38 =57 & = 3 2 & M (4, 7 2 , 19 2 ) & A ^ (0,2,12) aligned

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