log25 3 为什么等于log5^3
为什么1/log5(3)等于log3(5) ?
(log5根号2*log49 81)/(log25 1/3*log7 4开3次方)=?
(log4 3+log8 3)(log3 5+log9 5)(log5 2+log25 2)=
(log5根号2*log49^81)/(log25^(1/3)*log7^立方根4)
已知log5为底3的对数=a,log5为底2的对数=b,求log25为底12的对数的值
log10是什么?log 75 - log 3 + log 4=log25+log3-log3+2log2=2log5+
2^(log4^12)-3^(log9^27)+5^(log25^1/3)等于多少?
(log2^5+log4^0.2)(log5^2+log25^0.25)化简
log5【35】-2log5[7/3】+log5【7】-log5【1.8】 化简
log5(4),[log5(3)]²,log4(5)比较大小
已知log5 (3)=a,log5(4)=b ,用a,b表示log5(24)
求值(log2 5+log4 1/5)(log5 2+log25 1/2)