log(x)4/5

log(x)4/5 已知log(2){log(3)[log(4)(x)]}=5^0,则x=? log的底数5乘以(log的底数4(log的底数3(x)))=0 化简:1/log(3)x 1/log(4)x 1/log(5)x=……(答案是1/log(60)x 于是f(x)=9[log(4,x)]^2-[log(2,x)]^2=9[1/2*log(2,x)]^2-[log(2,x)]^2=5/4*[log(2,x)]^2 怎么得的? 设方程式为log(2)(x)-5log(x)(2)=4,其解集合为? log（x+5）=log（x）+log（2） log（8）+log（x）=log（24） 2log（x）=log(2x)+log(3) (log(2)125+log(2)25+log(8)5)*(log(125)2+log(25)4+log(5)8) [( log(x^2) + log(x^4) )/ log(100 x)] = 4 求X log(0.5x)(2)-log(0.5x^3)(x^2)=log(0.5x^3)(4) 方程log（3^x+4^x）=log（5^x-3^x）的解集为 log(X+5)+log(X+2)=1 (log(2)(x))^3-4(log(4)(x))^2+log(16)(x)=0 log(2)(x)log(2)(4x)-3log(2)(x)-12=0 简化2log (x + 4) – log(2x + 8) + log(x - 2)谢谢~ 已知log（2）[log（3)(log(4) x)] = log(3) [log(4) (log(2) y)]=0,求x+y的值 已知log(2)x=5,log(3)y=-2,求log(6)[3x/4y]...（括弧者为底数） 2 log(3x)= log 4 +log(6-x)怎么求...急