log2(3根号1/16*6根号16) =log2[1/16^(1/3)*16^(1/6) ]=log2[16^(1/6-1/3)]=log2[(2^4)^(-1/6)]=log2[2^(-2/3)]=-2/3 log2(3*根号1/16*6*根号16) =log2[3*6*根号（1/16*16)]=log2[18*1]=log2[3^2*2]=log2(3^2)+log2(...