diff --git a/education/math/MATH1210 (calc 1)/Limits.md b/education/math/MATH1210 (calc 1)/Limits.md index ad0cc5b..2f30a7c 100644 --- a/education/math/MATH1210 (calc 1)/Limits.md +++ b/education/math/MATH1210 (calc 1)/Limits.md @@ -46,6 +46,15 @@ An elementary function is any function that is defined using: - Composition A piece-wise function is *not* considered an elementary function + +- If $f$ and $g$ are continuous at a point $x = a$ and $c$ is a constant then the following functions are also continuous at $x = a$ +- If $g$ is continuous at $a$ and $f$ is continuous at $g(a)$, then $f(g(a))$ is continuous at $a$ +- If $f$ is an elementary function and if $a$ is in the domain of $f$, then $f$ is continuous at $a$ +Together, the above theorems tell us that if $a$ is in the domain of an elementary function, then $\lim_{x \to a} f(x) = f(a)$. + +# Intermediate Value Theorem +Let $f$ be a continuous function on the interval ${} + # Definitions | Term | Definition |