Mathematics · 2025
JEE Main · 29 January 2025, Shift 1 · Q23
Let S ={x: cos^-1 x=π+ sin^-1 x+ sin^-1(2 x+1)}. Then Σ_x ∈ S (2 x-1)^2 is equal to ____.
Let $\displaystyle \mathrm{S}=\left\{x: \cos ^{-1} x=\pi+\sin ^{-1} x+\sin ^{-1}(2 x+1)\right\}$. Then $\displaystyle \sum_{x \in \mathrm{~S}}(2 x-1)^2$ is equal to $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
5
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JEE Main 2025 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.