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能否直接规定一个数列中的某确定项是正负无穷大的？
能否直接规定一个数列中的某确定项是正负无穷大的？
2025-04-08 00:45:51
推荐回答（2个）
回答1：
不可以
数列中的项必须是一个数，不能是无穷大
这是由数列的定义决定的
无穷大不是数
回答2：
不可以,无穷大不是数
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