Mathematics · 2026
JEE Main · 5 April 2026, Shift 1 · Q24
If (π)/4+Σ_p=1^11 tan^-1((2^p-1)/(1+2^2 p-1))=α, then tan α is equal to ____.
If $\displaystyle \frac{\pi}{4}+\sum_{p=1}^{11} \tan ^{-1}\left(\frac{2^{p-1}}{1+2^{2 p-1}}\right)=\alpha$, then $\displaystyle \tan \alpha$ is equal to $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
2048
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.