若 log18 2=m,则log18 72=______

若 log18 2=m,则log18 72=______ 若 log18^2=a,则log3^2具体 log36 (45)=log18(45)/log18(36) =(log18 5+log18 9)/(log18 18 +log18 2) =(a+b)/(2-a)没理解 log18 2=m,则log6 2用m表示为? 若3^a=2,则log3 16—2/(log18 3)=? “log18 9=a,log18 54=b,求18 的2a-b次方” log18 9=m,18^(-n)=1/5,则log36 45=? log18^9=m,18^(-n)=1/5,则log6 45=? log18^3＝A 则log18^6等于多少 已知6^a=2,6^b=5,则log18^15= log18 2=a,用a表示log3 2 (log36(4))/log18(6)+log^2 6(3)= 若lg2=a lg3=b 则log2^25=?log18^15=?还要写明理由 log18 9=a,log18 5=b,求log30 36=?要求写出解题思路, 已知log18 9=a,log18 5=b,用a,b表示log 36 45. log18 9=a log18 5=b 用a,b表示log36 45 已知log18 9=a 18^b=5,则log36 45=? 已知9^a=2,9^b=5,用a,b 表示log18 (45),