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A circle with radius |a| and center on t...

A circle with radius `|a|` and center on the y-axis slied along it and a variable line through (a, 0) cuts the circle at points `Pa n dQ` . The region in which the point of intersection of the tangents to the circle at points `P` and `Q` lies is represented by (a) `y^2geq4(a x-a^2)` (b) `y^2lt=4(a x-a^2)` (c) `ygeq4(a x-a^2)` (d) `ylt=4(a x-a^2)`

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