Mathematics · 2021
JEE Main · 26 August 2021, Shift 1 · Q73
If a line along a chord of the circle 4 x^2+4 y^2+120 x+675=0, passes through the point (-30, 0) and is tangent to the parabola y^2=30 x, then the…
If a line along a chord of the circle $\displaystyle 4 x^2+4 y^2+120 x+675=0$, passes through the point $\displaystyle (-30, 0)$ and is tangent to the parabola $\displaystyle y^2=30 x$, then the length of this chord is :
Official answer
(2)
$\displaystyle 3 \sqrt{5}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.