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JEE Main & Advanced JEE Main Paper (Held on 12-4-2019 Afternoon)

  • question_answer
    A plane which bisects the angle between the two given planes \[2xy+2z4=0\]and \[x+2y+2z2=0,\] passes through the point: [JEE Main 12-4-2019 Afternoon]

    A) (2, 4, 1)                       

    B) (2, -4, 1)

    C) (1, 4, -1)                     

    D) (1, -4, 1)

    Correct Answer: B

    Solution :

    equation of bisector of angle \[\frac{2x-y+2z-4}{3}=\pm \frac{x+2y+2z-2}{3}\] (+) gives \[x3y=2\] (-) gives \[3x+y+4z=6\] therefore option [b] satisfy


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