Mathematics · 2020
JEE Main · 5 September 2020, Shift 1 · Q64
If the common tangent to the parabolas, y^2=4 x and x^2=4 y also touches the circle, x^2+y^2= c^2, then c is equal to:
If the common tangent to the parabolas, $\displaystyle y^2=4 x$ and $\displaystyle x^2=4 y$ also touches the circle, $\displaystyle x^2+y^2=\mathrm{c}^2$, then c is equal to :
Official answer
(1)
$\displaystyle \frac{1}{\sqrt{2}}$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.