化简:1/xy+1/(x+4)(y+4)+1/(x+8)(y+8)+.1/(x+4n)(y+4n)化简:1/xy+1/(x+4)(y+4)+1/(x+8)(y+8)+1/(x+12)(y+12)+.1/(x+4n)(y+4n)其中x=4,y=4或x=4,y=8(1/xy=xy分之一,1/(x+4)(y+4)=(x+4)(y+4)分之

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/11 06:42:03
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