What does it mean if limxtoa+f(x)neqlimxtoa−f(x)\\lim_{x \\to a^+} f(x) \\neq \\lim_{x \\to a^-} f(x)limxtoa+f(x)neqlimxtoa−f(x)?
The limit at x=ax=ax=a exists
The function is continuous
The function is undefined at x=ax=ax=a
The limit at x=ax=ax=a does not exist