5^log5(2)-4^log2(3)+3^log27(8)等于多少?(1)5^log5(2) - 4^log2(3) + 3^log27(8)等于多少?(2)开更号[lg2 (1/3) - 4lg(3) + 4 + lg(6) - 2^(-1)]等于多少?

lg(1/4)-lg2(5) 2log5(10)+log5(0.25) 2log2(25)-3log2(64) log2(log2(16) ) (log3^4+log5^2)(log2^9+log2^根号3) (log5(10))^3-(log5(2))^3-3log5(10)*log2(5) log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2[log2(32)-log2(3÷4）+log2log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2【log2(32)-log2(3÷4）+log2（6）】=?lgx+lg（x+15）=2 ..X 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 5-log3 15 （log5/log2+log0.2/log0.5)(log2/log0.2+log0.5/log5) 怎麼算 计算机等於-4 运用对数换底公式化简log2(3)*log3(4)*log4(5)*log5(2), log2 3 · log3 4 ·log4 5 ·log5 2 前面的是底数 帮忙换底化简下列:logaC*logcA .log2 3 * log3 4 * log4 5 * log5 2 计算：（lg2)2+3lg5+lg5(1+lg2)+lg8+log2（5）log5（4) log2 5乘log5 4等于多少 lg8*log2(5)*log5(4)得多少? log2(5) ×log5(8)=3步骤 log2^5乘以log5^2等于多少? 2log5 10+log5 0.25= 2log5 25-3log2 64= log2(log2 16)= 已知lg2=a,lg3=b,求log3 4,log2 12 计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15 (log5 √2*log7 9)/(log5 1/3 *log7 3√4)+log2( √(3+√5)- log√(3-√5))=? 数学(log5 √2*log7 9)/(log5 1/3 *log7 3√4)+log2( √(3+√5)- log√(3-√5))