log2(5) ×log5(8)=3步骤

log2(5)*log5(8)化简 log2(3)*log3(5)*log5(8)（具体步骤） log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=? 2log5(25)-3log2(64)=? 计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15 log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2[log 有关log的数学题①log2(2X+3)=0②log5(X)-1/3log5(8)=0③log2(X)+log4(X)= 我是这样做的log2(3)*log3(5)*log5(49)*log7(64)=log2(3)*log3(5)*2log 5^log5(2)-4^log2(3)+3^log27(8)等于多少? log2(2)+log5(1)-log1/3(1/27)+[3^log3(5)]^2+3^-log3(2)=? log2(3)+log3(4)+log4(5)+log5(6)+log6(7)+log7(8) 已知log2(5)=m ,log5(3)=n,求用m,n表示lg180