punkty-1-3-oraz-2-4

$\displaystyle \left(- \frac{1}{2}, \frac{1}{2} \right)$\displaystyle \left(- \frac{1}{2}, \frac{1}{2} \right)

$\displaystyle \left( \frac{1}{2},- \frac{3}{2} \right)$\displaystyle \left( \frac{1}{2},- \frac{3}{2} \right)

$\left(-1,2\right)$\left(-1,2\right)

$\left(-1,1\right)$\left(-1,1\right)