Mathematics · 2021
JEE Main · 3 August 2021, Shift 1 · Q72
The sum of the values of ' a ' for which circles of radius (√ 5)/3, touch the straight lines, x-2 y-a=0 and 3 x-6 y+7=0, is
The sum of the values of ' $\displaystyle a$ ' for which circles of radius $\displaystyle \frac{\sqrt{5}}{3}$, touch the straight lines, $\displaystyle x-2 y-a=0$ and $\displaystyle 3 x-6 y+7=0$, is
Official answer
(4)
$\displaystyle -\frac{14}{3}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.