Let $h(t)=5t^{3\mathrm{.}2}-5t^{-3\mathrm{.}2}.$

Then $h^{\text{'}}(t)$ i

$h^{\text{'}}(3)$ is $$

$h^{\text{'}\text{'}}(t)$ is $$

and $h^{\text{'}\text{'}}(3)$