式子(x-3)^0+x^-1
问题描述：
式子(x-3)^0+x^-1
答
(x-3)^0+x^-1
=1+x^-1
=1+1/x
=(x+1)/x
式子(x-3)^0+x^-1
(x-3)^0+x^-1
=1+x^-1
=1+1/x
=(x+1)/x