$($c$){\displaystyle \underset{1}{\overset{3}{}}}(3x^2-\frac{1}{4}{x}^3)dx$

$($d$){\displaystyle \underset{0}{\overset{\frac{}{4}}{}}}tan()se{c}^2()d$

$($e$){\displaystyle \underset{-2}{\overset{-1}{}}}x\sqrt[4]{x+2}dx$

$($f$){\displaystyle \underset{1}{\overset{3}{}}}\frac{e^{\frac{1}{x}}}{x^2}dx$