摘要：
$$
\begin{aligned}
&设a_0=1,a_1=2，\\
&且n(n+1)a_{n+1}=n(n-1)a_n-(n-2)a_{n-1},n=1,2,3,\cdots，\\
&求\cfrac{a_0}{a_1}+\cfrac{a_1}{a_2}+\cdots+\cfrac{a_{50}}{a_{51}}的值
\end{aligned}
$$ 阅读全文
posted @ 2021-10-10 11:08
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