Question

1. a) A = {0,5; 1. Scrie elementele multimii
AXA.
b) Ştiind că mulţimea B are 5 elemente, iar
card(B x M) = 30, determină card(M).​

Answer 1

Răspuns:

a) A x A = {(0;0), (0;5), (0;1), (5;0), (5;5), (5;1), (1;0), (1;5), (1;1)}

b) card (B x M) = card (B) * card (M) = 30

card (B) = 5

=> 5 * card (M) = 30

=> card (M) = 6