5.3 The Fundamental Theorem of Calculus/10

$g(r)=\int _{0}^{r}{\sqrt {x^{2}+4}}dx$

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle \frac{d}{dx}int_{0}^{r}\sqrt{x^2+4}}