Find the domain of `f(x)=sqrt(((1-5^x)/(7^(-x)-7)))`

find the domain of f(x)=sqrt((1-|x|)/(2-|x|))

Find the domain of f(x)=1/(sqrt(x+|x|))

Find the domain of f(x)=sqrt(cos^(-1)x-sin^(-1)x)

Find the domain of f(x)=sqrt(1-sqrt(1-sqrt(1-x^2)))

Find the domain of f(x)=sqrt(sinx)+sqrt(16-x^2)

Find the domain of f(x)=sqrt((0. 625)^(4-3x)-(1. 6)^(x(x+8)))

Find the domain of f(x)=1/(sqrt(|[|x|-1]|-5))

Find the domain of f(x)=sqrt((log)_(0. 4)((x-1)/(x+5)))

Find the domain of f(x)=sqrt(([x]-1))+sqrt((4-[x])) (where [ ] represents the greatest integer function).