计算:x/y²·(-y/x²);4/a²-1·a-1/6a.
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/05 05:05:31
x){nuU_lhna}h==6Opu
mO57KԳI*ҧH~
.LRD_n@455m5
5cm@ m3
计算:x/y²·(-y/x²);4/a²-1·a-1/6a.
计算:x/y²·(-y/x²);4/a²-1·a-1/6a.
计算:x/y²·(-y/x²);4/a²-1·a-1/6a.
x/y²·(-y/x²)=-1/(xy)
.
4/(a²-1)·(a-1)/(6a)=2/[3a(a+1)]