$\backslash$table$[[$Entered$,$Answer Preview,Result$],[(\frac{2}{\sqrt[\phantom{2}]{r}})(\frac{7}{3})**(r^{-(\frac{2}{3})}),\frac{2}{\sqrt[\phantom{2}]{r}}\frac{7}{3}{r}^{-\frac{2}{3}},$correct$],[1\mathrm{.}527,1\mathrm{.}527,$incorrect$],[-(\frac{1}{r^{\frac{3}{2}}})-(\frac{14}{9}{)}^{**}(r^{-(\frac{5}{3})}),-\frac{1}{r^{\frac{3}{2}}-\frac{14}{9}{r}^{-\frac{5}{3}}},$correct$],[-0\mathrm{.}2027,-0\mathrm{.}2027,$incorrect$]]$

At least one of the answers above is NOT correct.

Let $f(r)=4\sqrt[\phantom{2}]{r}7\sqrt[3]{r}$

$f^{\text{'}}(r)=$

$f^{\text{'}}(5)=$

$f^{\text{'}\text{'}}(r)=$

$f^{\text{'}\text{'}}(5)=$