Question:
If two tangents drawn from a point $P$ to the parabola $\mathrm{y}^{2}=16(\mathrm{x}-3)$ are at right angles, then the locus of point $\mathrm{P}$ is :
Correct Option: , 2
Solution:
Locus is directrix of parabola
$x-3+4=0 \Rightarrow x+1=0$
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