作业帮|1/2004-1/2003|+|1/2003-1/2002|+|1/2002-1/2001|-|1/2001-1/2004|=?
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/03 03:42:15
x)17200S51oA5!oRckoTOS l嚧/.zھɎUw}~ӆ=O'=lNbL O|F 1 56Z)
|1/2004-1/2003|+|1/2003-1/2002|+|1/2002-1/2001|-|1/2001-1/2004|=?
|1/2004-1/2003|+|1/2003-1/2002|+|1/2002-1/2001|-|1/2001-1/2004|=?
|1/2004-1/2003|+|1/2003-1/2002|+|1/2002-1/2001|-|1/2001-1/2004|=?
前面几个绝对值后与最后这个相减 等于0