lg1000+log低3 42-log低3 14-log低4 8 低是指低数

lg1000+log低3 42-log低3 14-log低4 8 低是指低数 log以3为低27分之一的对数是多少? (log(4)3+log(8)3)(log(3)2+log(9)8) 怎么个思路 用换底公式简化[log(4)3+log(8)3][log(3)2+log(9)2] (log(4)3+log(8)3)(log(3)2+log(9)2) 怎么个思路 log(3)4*log(4)8*log(8)M =log(2)16 M是多少 对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log( log(2)9×log(3)4 log(2)9log(3)4等于 log(27)16/log(3)4= 对数:log(4)8－log(1/9)3 求值 （LOG(3,4)+LOG(3,8)）（LOG(2,3)+LOG(2,9)）等于几 看的懂吧