$\displaystyle \left(- \frac{3}{2} \right)$\displaystyle \left(- \frac{3}{2} \right)

$\displaystyle \left(- \frac{\sqrt{3}}{2} \right)$\displaystyle \left(- \frac{\sqrt{3}}{2} \right)

$\displaystyle \frac{1}{2}$\displaystyle \frac{1}{2}

$\displaystyle \frac{3}{2}$\displaystyle \frac{3}{2}