Mathematics · 2022
JEE Main · 27 June 2022, Shift 1 · Q7
The lengths of the sides of a triangle are 10+x^2, 10+x^2 and 20-2 x^2. If for x= k, the area of the triangle is maximum, then 3 k^2 is equal to:
The lengths of the sides of a triangle are $\displaystyle 10+x^2, 10+x^2$ and $\displaystyle 20-2 x^2$. If for $\displaystyle x=\mathrm{k}$, the area of the triangle is maximum, then $\displaystyle 3 \mathrm{k}^2$ is equal to :
Official answer
(3)
$\displaystyle 10$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.