已知6^a=5,则|g25/lg6等于?
问题描述:
已知6^a=5,则|g25/lg6等于?
答
6^a = 5 a = log(6 ,5) (6是底数,5是真数) lg25/lg6 = log(6 ,25) = log(6 ,5 ) = 2log(6,5) = 2a看不懂。。。能传图吗?不能
已知6^a=5,则|g25/lg6等于?
6^a = 5 a = log(6 ,5) (6是底数,5是真数) lg25/lg6 = log(6 ,25) = log(6 ,5 ) = 2log(6,5) = 2a看不懂。。。能传图吗?不能