求极限:lim(1/n+2^2/n^2+3^2/n^3+...+n^2/n^n) n→∞
2个回答
楼上那位仁兄错了,无穷个无穷小是0吗?
1/n+2^2/n^2+3^2/n^3+...+n^2/n^n,先看3项之后的
4^2/n^4+5^2/n^5+...+n^2/n^n
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