Mathematics · 2014
JEE Main · 11 April 2014, Shift 1 · Q80
The set of all real values of λ for which exactly two common tangents can be drawn to the circles x^2+y^2-4 x-4 y+6=0 and x^2+y^2-10 x-10 y+λ=0 is…
The set of all real values of $\displaystyle \lambda$ for which exactly two common tangents can be drawn to the circles
$\displaystyle x^2+y^2-4 x-4 y+6=0$ and
$\displaystyle x^2+y^2-10 x-10 y+\lambda=0$ is the interval :
Official answer
(2)
$\displaystyle (18,42)$
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JEE Main 2014 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.