If f(x)=log10(x)f(x) = \log_{10}(x)f(x)=log10(x), what is the domain of g(x)=f(x2)g(x) = f(x^2)g(x)=f(x2)?
x>0x > 0x>0
x≥0x \ge 0x≥0
x≠0x \neq 0x=0
All real numbers