试说明a^m+1*a^n=a^n+1*a^m

问题描述:

试说明a^m+1*a^n=a^n+1*a^m

a^m+1*a^n
=a^m*a^1*a^n
=(a^n*a^1)*a^m
=a^n+1 *a^m