Let $\displaystyle {h}{\left({x}\right)}={\tan{{\left({2}{x}+{4}\right)}}}$. Then

$\displaystyle {h}'{\left({1}\right)}$ is Preview Question 6 Part 1 of 2  

and $\displaystyle {h}{''}{\left({1}\right)}$ is Preview Question 6 Part 2 of 2