计算log3(1/9)+lg(1/10)+log2(6)-log2(3)+5^[log5(3)]
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
(log3^4+log5^2)(log2^9+log2^根号3)
log2(2)+log5(1)-log1/3(1/27)+[3^log3(5)]^2+3^-log3(2)=?
log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2[log
计算:lg(1/2)-lg(5/8)+lg(12.5)+log2为底3*log3为底8=
计算log的题目2log5 10+2log5 0.5+log2 1+3log3 3log后为系数,特隔空格区分,
求下列各式的值 1)log2 6+log2 3 2)lg5+lg2 3)log5 3+log5 三分之一 4)log3
log2(3)*log3(5)*log5(8)(具体步骤)
利用对数的换地公式,计算log2 1/25*log3 1/8*log5 1/9
计算log2为底25*log3为底1/16log5为底1/9
log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=?
log2(3)+log3(4)+log4(5)+log5(6)+log6(7)+log7(8)