JEE MAIN - Mathematics Hindi (2025 - 28th January Morning Shift - No. 2)

यदि $f(x)=\frac{2^x}{2^x+\sqrt{2}}, \mathrm{x} \in \mathbb{R}$, तो $\sum_\limits{\mathrm{k}=1}^{81} f\left(\frac{\mathrm{k}}{82}\right)$ बराबर है
$82$
$81 \sqrt{2}$
$41$
$\frac{81}{2}$

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