Mathematics · 2023
JEE Main · 29 January 2023, Shift 1 · Q73
Let the tangents at the points A(4,-11) and B(8,-5) on the circle x^2+y^2-3 x+10 y-15=0, intersect at the point C. Then the radius of the circle,…
Let the tangents at the points $\displaystyle A(4,-11)$ and $\displaystyle B(8,-5)$ on the circle $\displaystyle x^2+y^2-3 x+10 y-15=0$, intersect at the point $\displaystyle C$. Then the radius of the circle, whose centre is $\displaystyle C$ and the line joining $\displaystyle A$ and $\displaystyle B$ is its tangent, is equal to
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \frac{2 \sqrt{13}}{3}$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.