x-y分之x -x-y分子y结果是多少
问题描述:
x-y分之x -x-y分子y结果是多少
答
x/(x-y)-y(x-y)
=(x-y)/(x-y)
=1
x-y分之x -x-y分子y结果是多少
x/(x-y)-y(x-y)
=(x-y)/(x-y)
=1