zad. 1
A=\{1,2,3,4,6,9,12,18,36\}
B=\{3,6,9,12,15,18,21,24,27,30,33,36,39,42\}
A\cup B=\{1,2,3,4,6,9,12,15,18,21,24,27,30,33,36,39,42\}
A\cap B=\{3,6,9,12,18,36\}
A\backslash B=\{1,2,4\}
B\backslash A=\{15,21,24,27,30,33,39,42\}
zad. 2
a)
A=\{-2,2\}
B=\{-2,-1,0,1,2,3,4\}
A\cup B=\{-2,-1,0,1,2,3,4\}
A\cap B=\{-2,2\}
A\backslash B=\{\emptyset\}
B\backslash A=\{-1,0,1,3,4\}
b)
A=\{-3,-2,-1,0,1,2,3\}
B=\{-3,3\}
A\cup B=\{-3,-2,-1,0,1,2,3\}
A\cap B=\{-3,3\}
A\backslash B=\{-2,-1,0,1,2\}
B\backslash A=\{\emptyset\}