ParabolaEasy
Question
If two tangents drawn from a point P to the parabola y2 = 4x are at right angles, then the locus of P is
Options
A.2x + 1 = 0
B.x = - 1
C.2x - 1 = 0
D.x = 1
Solution
The locus of perpendicular tangents is directrix
i.e, x = - a; x = - 1
i.e, x = - a; x = - 1
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