log a [4+(x-4)a] < 2log a (x-2)

log a [4+(x-4)a] < 2log a (x-2) x=log a 2 log a(1/2次方) x等于2log a 2log(b)x=log(a)x+log(c)x 若不等式2^x-log(a)(x) log以a为底(x-4)的对数>log以a为底(2x-1)对数 如何用matlab M文件表达该式 a(1)+a(2)*log(x)+a(3)*log(1-x)+a(4)/x+a(5) [log (底数为a) x]=[1\2log (底数为a) b ] - [ log (底数为a)c]求X 若logx表示log10x(10为底数),且log(5x^2)=a,则log(4/x^2)= log(a-1) (2x-1)-log(a-1)(x-1)>0 log(2)3=a,则log(6)4=（ 解关于x的不等式:log以a为底(4+3x-x^2)的对数-log以a为底(2x-1)的对数>log以a为底2的对数(a