-1x1/2=-1+1/2 -1/2x1/3=-1/2+1/3你发现的规律是:( ).

问题描述:

-1x1/2=-1+1/2 -1/2x1/3=-1/2+1/3你发现的规律是:( ).

-1/n x 1/(n+1)=-1/n + 1/(n+1)