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Question: Answered & Verified by Expert
A plane which bisects the angle between the two given planes 2x-y+2z-4=0 and x+2y+2z-2=0, passes through the point
MathematicsThree Dimensional GeometryJEE MainJEE Main 2019 (12 Apr Shift 2)
Options:
  • A 2, 4, 1
  • B (1,-4, 1)
  • C 1, 4,-1
  • D 2,-4, 1
Solution:
1464 Upvotes Verified Answer
The correct answer is: 2,-4, 1
Equation of bisector of angle
2x-y+2z-43=±x+2y+2z-23
(+) gives x-3y=2
- gives 3x+y+4z=6
therefore 2,-4, 1 satisfies the above equation.

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