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JEE Main & Advanced Mathematics Conic Sections Question Bank Parabola

  • question_answer
    From the point (?1, ?60) two tangents are drawn to the parabola \[{{y}^{2}}=4x\]. Then the angle between the two tangents is [J & K 2005]

    A)            30° 

    B)            45°

    C)            60° 

    D)            90°

    Correct Answer: D

    Solution :

               The given point (?1, ?60) lies on the directrix \[x=-1\] of the parabola \[{{y}^{2}}=4x\]. Thus the tangents are at right angle.


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