化简（1 - 1/a-1）÷a²-4a+4/a²-a
来源：学生学帮网 编辑：学帮网 时间：2024/06/02 02:07:32
化简（1 - 1/a-1）÷a²-4a+4/a²-a
1-1/(a-1)÷(a-2)^2/a(a-1)
=a-1-1/(a-1)÷(a-2)^2/a(a-1)
=a/(a-1)÷(a-2)^2/a(a-1)
=a^2/(a-2)^2
化简（1 - 1/a-1）÷a²-4a+4/a²-a
1-1/(a-1)÷(a-2)^2/a(a-1)
=a-1-1/(a-1)÷(a-2)^2/a(a-1)
=a/(a-1)÷(a-2)^2/a(a-1)
=a^2/(a-2)^2