(x^m)^n 乘 (x^n)^m ,m^2乘(m^5)^2+m^10m^2+m乘m^3乘m^8,-[(-x)^3]^m,[(a-b)^n]^M,(m为奇数)
问题描述:
(x^m)^n 乘 (x^n)^m ,m^2乘(m^5)^2+m^10m^2+m乘m^3乘m^8,-[(-x)^3]^m,[(a-b)^n]^M,(m为奇数)
答
(x^m)^n 乘 (x^n)^m=x^mn*x^mn=x^2mnm^2乘(m^5)^2+m^10m^2+m乘m^3乘m^8,=m²*m^10+m^12+m^12=m^12+m^12+m^12=3m^12-[(-x)^3]^m=-(-x³)^m=-(-x^3m)=x^3m[(a-b)^n]^M=(a-b)^Mn