Question

care dintre ele este multime finita ?
a) D2 ,b)M7, c) M2\M3 , D) D5UM4

Answer 1

D2 e{1;2} deci e finita 
M7e{7,14,21,28,35...etc multime infinita
M2\M3{2,4,8,10,14,16,20,22,24,28...... multime infinita si ultima D5UM4 tot multime infinita deci raspunsul corect este a)D2

Answer 2

A.$D_{2}$={1,2}
B.$M_{7}$={7,14,21,28,...}
C.$M_{3 si2}$={6,12,18,...}
D.$D_{5} U M_{4}$={20,40,60,80...}
Raspuns:A