log2x+ log2y=0,且x^4+ y^4=194,求log2(x+ y)的值
已知log2(log3(log4x))=0,且log4(log2y)=1.求根号x*y^3/4的值在线等啊.
log2[log3(log4x)]=log3[log4(log2y)]=0求x+y的值,
已知log2[log4(log3x)]=log3[log5(log2y)]=0,求4更号x-y^1/5
已知log2[log3(log4x)]=log3[log4(log2y)]=0,求x+y
设点P(X,Y)在直线x+y=1位于第一象限,则log2x+log2y的最大值是?
(2014•宝山区二模)已知log2x+log2y=1,则x+y的最小值为22
函数Y=log2(x^2+1)-log2x的值域
若log2(log3(log4x)=log3(log4(log2y)=log4(log2(log3z)=0则x+y-z=
log2[log3(log4x)]=log3[log4(log2y)]=0,则x+y=______.
将函数y=(log2x)-1的图象按向量a平移后得到函数y-2=log2[4(x-3)]的图象,求a
已知集合A{x|log2(2x)*log2x《=0},(1)求集合A;(2)求函数y=4^2x+1+4^x(x属于A)的
求函数y=log1\2(1-2x-x^2)的值域 求满足不等式log2(3x-5)<log2x+1的x取值范围