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There have been 4 items by Tuan2004 (Search limited from 19-05-2020)
Posted by Tuan2004 on 06-12-2022 - 22:47 in Giải tích
Posted by Tuan2004 on 06-12-2022 - 16:27 in Giải tích
Cho $a_{n}=(-1)^{n}.\left(1+\dfrac{1}{n}\right)$ với mọi $n\in \mathbb{N}$. Tính $\liminf\limits_{n\to \infty}a_{n}$ và $\limsup\limits_{n\to \infty}a_{n}$.
Posted by Tuan2004 on 06-12-2022 - 16:11 in Giải tích
Posted by Tuan2004 on 04-12-2022 - 09:23 in Giải tích
Tìm một song ánh từ $[0, 1]$ vào $\left( {0, \frac{1}{2}} \right) \cup \left( {\frac{1}{2} ,1} \right)$.