化简:(1+1/x)成x/x²-1
问题描述:
化简:(1+1/x)成x/x²-1
答
=(x+1)/x×x/(x+1)(x-1)
=1/(x-1)
化简:(1+1/x)成x/x²-1
=(x+1)/x×x/(x+1)(x-1)
=1/(x-1)