$\displaystyle 3^{ \frac{5}{8} }$\displaystyle 3^{ \frac{5}{8} }

$\displaystyle 3^{ \frac{11}{4} }$\displaystyle 3^{ \frac{11}{4} }

$\displaystyle 3^{ \frac{1}{4} }$\displaystyle 3^{ \frac{1}{4} }

$\displaystyle 3^{ \frac{9}{8} }$\displaystyle 3^{ \frac{9}{8} }