若a^m=6,a^n=1/4,求a^(2m+2n)的值
问题描述:
若a^m=6,a^n=1/4,求a^(2m+2n)的值
RT
答
a^(2m+2n)=(a^(m+n))^2=(a^m*a^n)^2=(6/4)^2=9/4.
若a^m=6,a^n=1/4,求a^(2m+2n)的值
RT
a^(2m+2n)=(a^(m+n))^2=(a^m*a^n)^2=(6/4)^2=9/4.