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AP EAMCET20227 Jul 2022Morning ShiftMathematicsThree Dimensional GeometryActual

If the point (3,4,5) divides the line segment joining the points (1,2,3) and (4,5,6) in the ratio : 1 , then the point which divides the line segment joining the points (3,4,5) and (1,2,3) in the ratio -1: is

Options

  1. A(6,7,8)
  2. B(5,6,7)
  3. C(-4,-5,-6)
  4. D(-5,-6,-7)

Correct answer

B. (5,6,7)

Step-by-step solution

4 +1 +1 =3 =2 According to question, Required point = ( 3 -1 -1 , 4 -2 -1 , 5 -3 -1 )= ( 3 2-1 2-1 , 4 2-2 2-1 , 5 2-3 2-1 )=(5,6,7)

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