TS EAMCET · Maths · Parabola
If two tangents to the parabola meet the tangent at its vertex in and such that , then the locus of the point of intersection of those two tangents is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given parabola is y2=8x. Comparing with y2=4ax, we get 4a=8 ⇒a=2 Let the parametric co-ordinates of P & Q be at12, 2at1 & at22, 2at2 respectively. So, equation of tangent at P is yt1=x+2t12 ...........i and the equation of tangent…
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