log底2(x-2)

2log底3x+log底3 2=1/2log底3 16 x为什么值 log(0.5x)(2)-log(0.5x^3)(x^2)=log(0.5x^3)(4) [( log(x^2) + log(x^4) )/ log(100 x)] = 4 求X log以5为底（3x-2)>log以5为底（x+1) 换底公式的使用!为什么 y=log(1/2) X = - log(2)X solve:log(x)+log(2x)=2 log(X+5)+log(X+2)=1 x=log a 2 已知log(2)X,log(2)|X|,log(2)(-X),-log(2)X的图像怎么画? 对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log( 2log(b)x=log(a)x+log(c)x 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))=