Question 132
Let $f(x) = \frac{9^x}{9^x+3}$. Evaluate the sum
$$
\sum_{k=0}^{2021} f\left(\frac{k}{2021}\right).
$$
$$
\sum_{k=0}^{2021} f\left(\frac{k}{2021}\right).
$$
MathNet 2022-part-04 — 197 problems (EN–VI) Question 132
Math Olympiad Vault · MathNet 2022-part-04 — 197 problems (EN–VI)