Mathematics · 2018
JEE Main · 16 April 2018, Shift 1 · Q79
If a circle C, whose radius is 3, touches externally the circle, x^2+y^2+2 x-4 y-4=0 at the point ( 2,2 ), then the length of the intercept cut by…
If a circle C, whose radius is $\displaystyle 3$, touches externally the circle, $\displaystyle x^2+y^2+2 x-4 y-4=0$ at the point $\displaystyle ( 2,2 )$, then the length of the intercept cut by this circle C, on the $\displaystyle x$-axis is equal to :
Official answer
(1)
$\displaystyle 2 \sqrt{5}$
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JEE Main 2018 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.