计算:{-1/4a^(3-n)b^(m-1)}^2·(4a^(3+n)b)^2
问题描述:
计算:{-1/4a^(3-n)b^(m-1)}^2·(4a^(3+n)b)^2
答
{-1/4a^(3-n)b^(m-1)}^2·(4a^(3+n)b)^2
=[-1/4a^(3-n)b^(m-1)*4a^(3+n)b]²
=[-a^(3-n+3+n)b^(m-1+1)]²
=[-a^6b^m]²
=a^12b^2m