log2(0.2)×log5(8)+10^lg3=______.

log2(0.2)×log5(8)+10^lg3=______. log2(5)*log5(8)化简 比较大小log2 5和log5 8 计算：log2(8)×log4(5)×log5(16) log2(5) ×log5(8)=3步骤 (log5(10))^3-(log5(2))^3-3log5(10)*log2(5) lg(1/4)-lg2(5) 2log5(10)+log5(0.25) 2log2(25)-3log2(64) log2(log2(16) ) 对数函数怎么化简[log2(10)+log5(10)]/[log2(10)*log5(10)] log2/log5等于多少 （1）2log5*10+log5*0.25(2)log2(log2*16)(3)lg12.5-lg5/8+lg0.5第三题：y=√（x²+3x+2）+log2*3x的定义域是? 求(log2 5+log4 0.2)(log5 2+log25 0.5) (log2^5+log4^0.2)(log5^2+log25^0.25)化简 求(log2)^3+(log5)^3+log5×log8的值.(以10为底) (1/log2 10) + (1/log5 10) =lg2 + lg5 log2的25次×log5的8次等于 比较log2底5与log5底8的大小 log2(3)*log3(5)*log5(8)（具体步骤） 2log5(25)+3log2(64)-8ln1等于多少