Câu hỏi 10
Tính
$$
\prod_{n=0}^{\infty}\left(1-\left(\frac{1}{2}\right)^{3^{n}}+\left(\frac{1}{4}\right)^{3^{n}}\right)
$$
$$
\prod_{n=0}^{\infty}\left(1-\left(\frac{1}{2}\right)^{3^{n}}+\left(\frac{1}{4}\right)^{3^{n}}\right)
$$
MathNet 2009-part-05 — 172 bài (EN–VI) Câu hỏi 10
Math Olympiad Vault · MathNet 2009-part-05 — 172 bài (EN–VI)