Matematika A - 2022. jesen, 23.

$⟨-\mathrm{\infty },-1]\backslash langle-\backslash infty,-1]$

$⟨-1,0]\backslash langle-1,0]$

$⟨0,1]\backslash langle\; 0,1]$

$⟨1,+\mathrm{\infty }⟩\backslash langle\; 1,+\backslash infty\backslash rangle$