JEE MAIN - Mathematics (2021 - 27th August Evening Shift - No. 4)
If two tangents drawn from a point P to the
parabola y2 = 16(x $$-$$ 3) are at right angles, then the locus of point P is :
parabola y2 = 16(x $$-$$ 3) are at right angles, then the locus of point P is :
x + 3 = 0
x + 1 = 0
x + 2 = 0
x + 4 = 0
Explanation
Locus is directrix of parabola
x $$-$$ 3 + 4 = 0 $$\Rightarrow$$ x + 1 = 0.
x $$-$$ 3 + 4 = 0 $$\Rightarrow$$ x + 1 = 0.
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