log3(5)+log9(5)求大神帮助log3(5)+log9(5)具体步骤,和,lg平方3-lg9+1配方

log3(5)+log9(5)求大神帮助log3(5)+log9(5)具体步骤,和,lg平方3-lg9+1配方 log3(x-1)=log9(x+5) 求x log3(x-1)=log9(x-5) 求x log3 5-log3 15+1/2log9 27 的值 对数题用a=log3(5),b=log3(7),表示log9(175)=用a=log3(5),b=log3(7),表示log9(175)=求各种精辟回答 log9(x+5）为什么可以化简为½log3 x+5?求解答! log9^5=a,log3^7=b,求log35^9=? 求满足等式log3^(x-1)=log9^(x+5)的x |log3(5)-2|+log9(25)+(1/32)^1/5 计算[log9(5)+log3(5)]乘[log25(3)+log125(9)] 方程log3 (x-1)=log9 (x+5) 解方程log3^(x-1)=log9^(x+5) log3(x-1)=log9(x+5)详细过程, log9(45)-log9(5) log3(x-1)=log9(x+5) 中log9(x+5) 怎么化简? log3(x-1)=log9(x+5) 中log9(x+5) 怎么化简? log 243÷log9 =log3^5÷log3^2 =log3^5-log3^2 然后怎么写 化简:log2 2+log5 1-3^(2log9 5)+(3log3 5)^2+3^log3 2