A) \[x=0\]
B) \[y=0\]
C) \[{{y}^{2}}=2a(x+a)\]
D) \[{{x}^{2}}+{{y}^{2}}(x+a)=0\]
Correct Answer: A
Solution :
Tangent to parabola is, \[y=mx+\frac{a}{m}\] .....(i) A line perpendicular to tangent and passing from focus \[(a,\,0)\] is, \[y=-\frac{x}{m}+\frac{a}{m}\] .....(ii) Solving both lines (i) and (ii) Þ \[x=0\].You need to login to perform this action.
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