高中数学排列(练习册上基础题)化简:1/(2!)+2/(3!)+3/(4!)+ … +(n-1)/(n!) 其中n属于n* ,n>=2 在这里回答复制一下,我给两倍的分数!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 06:39:32
![高中数学排列(练习册上基础题)化简:1/(2!)+2/(3!)+3/(4!)+ … +(n-1)/(n!) 其中n属于n* ,n>=2 在这里回答复制一下,我给两倍的分数!](/uploads/image/z/10007537-41-7.jpg?t=%E9%AB%98%E4%B8%AD%E6%95%B0%E5%AD%A6%E6%8E%92%E5%88%97%EF%BC%88%E7%BB%83%E4%B9%A0%E5%86%8C%E4%B8%8A%E5%9F%BA%E7%A1%80%E9%A2%98%EF%BC%89%E5%8C%96%E7%AE%80%EF%BC%9A1%2F%282%21%29%2B2%2F%283%21%29%2B3%2F%284%21%29%2B+%E2%80%A6+%2B%28n-1%29%2F%28n%21%29+%E5%85%B6%E4%B8%ADn%E5%B1%9E%E4%BA%8En%2A+%2Cn%3E%3D2+%E5%9C%A8%E8%BF%99%E9%87%8C%E5%9B%9E%E7%AD%94%E5%A4%8D%E5%88%B6%E4%B8%80%E4%B8%8B%EF%BC%8C%E6%88%91%E7%BB%99%E4%B8%A4%E5%80%8D%E7%9A%84%E5%88%86%E6%95%B0%EF%BC%81)
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