Mathematics · 2026
JEE Main · 23 January 2026, Shift 2 · Q19
Let I (x)=∫ (3 d x)/((4 x+6)(√(4 x^2+8 x+3))) and I (0)=(√ 3)/4+20. If I (1/2)=(a √ 2)/b+ c, where a, b, c ∈ N, gcd (a, b)=1, then a+b+c is equal to
Let $\displaystyle \mathrm{I}(x)=\int \frac{3 d x}{(4 x+6)\left(\sqrt{4 x^2+8 x+3}\right)}$ and $\displaystyle \mathrm{I}(0)=\frac{\sqrt{3}}{4}+20$. If
$\displaystyle \mathrm{I}\left(\frac{1}{2}\right)=\frac{a \sqrt{2}}{b}+\mathrm{c}$, where $\displaystyle a, b, \mathrm{c} \in \mathrm{N}, \operatorname{gcd}(a, b)=1$, then $\displaystyle a+b+c$ is equal to
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 31$
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.