作业帮谢谢`我有急用`` 76*(1/23-1/53)+23*(1/53+1/76)-53*(1/23-1/76)
来源：学生作业帮 编辑：拍题作业网作业帮 分类：数学作业 时间：2024/04/30 05:52:12
谢谢`我有急用``
76*(1/23-1/53)+23*(1/53+1/76)-53*(1/23-1/76)
76*(1/23-1/53)+23*(1/53+1/76)-53*(1/23-1/76)
=76*(1/23-1/53)+23*(1/53+1/76)+53*(-1/23-1/53+1/53+1/76)
=76*(1/23-1/53)+[23*(1/53+1/76)+53*(1/53+1/76)]-53*(1/23+1/53)
=76*(1/23-1/53)+76*(1/53+1/76)-53*(1/23+1/53)
=76*(1/23+1/76)-53*(1/23+1/53)
=76/23+1-53/23-1
=1
=76*(1/23-1/53)+[23*(1/53+1/76)+53*(1/53+1/76)]-53*(1/23+1/53)
=76*(1/23-1/53)+76*(1/53+1/76)-53*(1/23+1/53)
=76*(1/23+1/76)-53*(1/23+1/53)
=76/23+1-53/23-1
=1