m-m²/（m²-1)÷m/（m-1）x(m+1）/（m-1）²

来源：学生作业帮助网编辑：作业帮时间：2024/05/06 21:14:47

m-m²/（m²-1)÷m/（m-1）x(m+1）/（m-1）²
m-m²/（m²-1)÷m/（m-1）x(m+1）/（m-1）²

m-m²/（m²-1)÷m/（m-1）x(m+1）/（m-1）²

原式
=-m(m-1)/(m+1)(m-1) × (m-1)/m x(m+1）/（m-1）²
=-m/(m+1) ×(m-1)/m x(m+1）/（m-1）²
=-m/(m+1)×(m-1)/m x(m+1）/（m-1）²
=-1/(m-1)
=1/(1-m)

图片格式