Two tangent lines l1andl2 are drawn from the point (2, 0) to the parabola 2y2 = x. If the lines l1andl2 are also tangent to the circle (x – 5)2 + y2= r, then 17r is equal to……….

0 3 Views | Posted 2 months ago
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    Answered by

    Vishal Baghel | Contributor-Level 10

    2 months ago

     y2=x2

    y=mx18m

    This tangent pass through (2, 0)

    m=±14i.e., onetangentisx4y2=0, 17r=9

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