log5(1+√6)+log2(-1+√2)=a.则log5(-1+√6)+log2(1+√2)=?
数学(log5 √2*log7 9)/(log5 1/3 *log7 3√4)+log2( √(3+√5)- log√(
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
有关log的数学题①log2(2X+3)=0②log5(X)-1/3log5(8)=0③log2(X)+log4(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
(1/log2 10) + (1/log5 10) =lg2 + lg5
log2(2)+log5(1)-log1/3(1/27)+[3^log3(5)]^2+3^-log3(2)=?
2log5(25)-3log2(64)=?
若3/log2 19+2/log3 19+1/log5 19=log19 m,求m的值
求值(log2 5+log4 1/5)(log5 2+log25 1/2)
比较log2^(1/3),log1/3^2,log5^2的大小
证明不等式1/(log5(19))+(2/log3(19))+(3/log2(19))
计算:(lg2)2+3lg5+lg5(1+lg2)+lg8+log2(5)log5(4)