A. log10(2-x)
B. 1/2 log10 1+x/1-x
C. 1/2 log10(2x-1)
D. 1/4 log 2x/2-x
if f(x)=a2x-a-2x/a2x+a-2x, then f(x) is
The domain of √x2-3x+2 is
The range of x2+4y2+9z2-6yz-3xz-2xy is
The domain of √(x-1)(x-2)(x-3) is
The domain of f(x)= log10(√x-4 +√6-x) is
The domain of √1-3x+Cos-1 3x-1/2 is
f={(1, 4), (2,-2), (3,10)} then f/2=