log9(log2(8)) = x ,求x
若log2^3×log3^4×log4^x=log9^3 ,求x
Log2⒊log3⒋log4ⅹ=log9⒊求x的值
求x,y值.6log9^x+3log27^y=8log3^x+2log9^y=2
log4(log2^x)=log2(log4^x)求log2^x
(log2(3)+log8(9))x(log3(4)+log9(8)+log3(2))
log2(x)=-2/3,求x
(log2^3 +log3^5) x ( log3^5 +log9^5 ) x lg 2 ,
解方程:log2(x+4)+log2(x-1)=1+log2(x+8)
若x∈[根号2,8],求函数y=(log2底 x/2)×(log2 底x/4)的值域
求函数y=log2(x/2) *log2(x/4)(x∈[1,8])的最大值和最小值
求函数y=log2 x/2·log2 4x,x∈[1/4,8]的值域
已知函数f(x)=log2(2-x)+log2(2+x)求f(x)的定义域