(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 07:25:35
![(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答](/uploads/image/z/1992799-55-9.jpg?t=%28a-1%29%26%23178%3B%E5%88%861+%E9%99%A4a%26%23178%3B-1%E5%88%86%E4%B9%8B1+%E4%B9%98a%2B1%E5%88%86%E4%B9%8Ba-1+%E8%AF%B7%E9%97%AE%E6%80%8E%E4%B9%88%E8%A7%A3%E7%AD%94%28a-1%29%26%23178%3B%E5%88%861+%E9%99%A4a%26%23178%3B-1%E5%88%86%E4%B9%8B1+%E4%B9%98a%2B1%E5%88%86%E4%B9%8Ba-1+%E8%AF%B7%E9%97%AE%E6%80%8E%E4%B9%88%E8%A7%A3%E7%AD%94)
(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答
(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答
(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答
(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答(a-1)²分1 除a²-1分之1 乘a+1分之a-1 请问怎么解答
原式=1/(a-1)²×(a²-1)×(a-1)/(a+1)
=1/(a-1)²×(a+1)(a-1)×(a-1)/(a+1)
=(a+1)/(a-1)×(a-1)/(a+1)
=1
..题不清......
1/(a-1)²÷1/(a²-1)×(a-1)/(a+1)
=1/[(a-1)(a-1)]×[(a+1)(a-1)]×(a-1)/(a+1)
=1