log 3 (4+x+4y)^2=0 联立 log 2 (x+1)^2=1+3log 2 y^2 求

已知log（2）[log（3)(log(4) x)] = log(3) [log(4) (log(2) y)]=0,求x+y的值 若log底数2[log底数3(log底数4)]若log底数2[log底数3(log底数4（x）)]=log底数3[log底数4(log底数2(y))]=log底数4[log底数2(log底数3z)]=0,则x+y+z= log 9 X/Y=1/2(log 3 X - log 3 Y) log 9 X/Y=1/4 3log 3 X =2log 3 Y find X and Y [log(4)(2x)][log(2x)(3y)][log(3y)(z)]=log(8x)[(8x)]^2,则z=? (log(2)(x))^3-4(log(4)(x))^2+log(16)(x)=0 log(2)(x)log(2)(4x)-3log(2)(x)-12=0 log 3 (4+x+4y)^2=0 联立 log 2 (x+1)^2=1+3log 2 y^2 求 log底数3[log底数4(log底数2y)]=0等于多少? 已知log(2){log(3)[log(4)(x)]}=5^0,则x=? log(0.5x)(2)-log(0.5x^3)(x^2)=log(0.5x^3)(4) 数学y=log(3)x+4log(x)3怎么化成y=log(3)x+4/log(3)x? 解方程3log(x)4+2log(4x)4+3log(16x)4=0 已知log(2)x=5,log(3)y=-2,求log(6)[3x/4y]...（括弧者为底数） log以2为底的（log以3为底的（log以4为底的x))=log以3为底的（log以4为底的（log以2为底的y))=log以4为底（log以2为底的（log以3为底的z))=0,则x+y+z等于?这个我写的比较多,希望会的人不要觉的麻烦,. 2 log(3x)= log 4 +log(6-x)怎么求...急 已知log的2次方【log的3次方（log的4次方x)】=log【log的4次方（log的2次方y】=0,求x+y的值设函数f(lgx)的定义域是【0.1,100】,求函数f(x/2)的定义域设函数f(x)=2的-x方,x≤0和f(x)=x的-1/2,x＞0,如果f(x的0次 log(4)y+log(2y)=9怎么解 log(2)(x+4)=3^x