TS EAMCET · Maths · Parabola
If the focal chord drawn through the point \((1,2)\) to the parabola \(y^2=8 x\) meets this parabola in \(\left(x_1, y_1\right)\) and \(\left(x_2, y_2\right)\) then \(x_1+x_2=\)
- A 4
- B 5
- C 6
- D 8
Answer & Solution
Correct Answer
(C) 6
Step-by-step Solution
Detailed explanation
Given parabola is \({y}^2=8 {x}\) with parametric coordinates \(\left({at}_1^2, 2 {at}{ }_1\right)\) and \(\left({at}_2^2, 2 {at}_2\right)\). \(\operatorname{Let}\left({x}_1, {y}_1\right) \rightarrow\left(a {t}_1^2, 2 a t_1\right)\) and…
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