Question

Calculati
a) (2,0,1,3 ) include (2,1,0,5)
b) (3,1,2) reuniunea (2,0,3)
c) (3,0,1,2) include N ingrosat*
d) (2,0,1,3)-N ingrosat*

Answer 1

a) (2,0,1)
b) (0,1,2,3)
c) N
d) multime vida (zero barat se noteaza)