log 9 X/Y=1/2(log 3 X - log 3 Y) log 9 X/Y=1/4 3log 3 X =2lo

已知log（2）[log（3)(log(4) x)] = log(3) [log(4) (log(2) y)]=0,求x log(2x)+log(3y)-log(2z) 怎么化简? log3(x^2-2x-6)=2 log(3x+6)=1+l 请画出下列图像：log 1/2 （-x） y=log 1/3 /x/ 4^log(4)[x^2]+3^log(9)[6x]=log(2)[16] 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 log(0.5x)(2)-log(0.5x^3)(x^2)=log(0.5x^3)(4) （高一）若x满足2(log(1/2)x)^2-14log(4)x+3≤0,求f(x)=[log(2)(x/2)]*{lo 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))= 计量模型y=c1*log(x)+c2*log(x)^2+c3*log(x)^3+c4+ar(1)有经济意义吗? 1/log（2）x+1/log（3）x+1/log（4）x=1,x=? y=log(4)(1-2x+x^2) =log(2)[(1-x)^2] /log(2)(4) =2[log(2)|1-x 已知log(1/7)[log(3)(log(2)x)]=0