Question

plsssssssss!!dau coroana!! plsss!!                                                  fie multimile:                                                             A={1,2,3,4}.                                                          B={2,3,4,5,6}.                                      c={x\x€N,x=par,x<20}.                                                 a)c=?.                                                  b)cardinal (A)=?.                                                 cardinal (B)=?.                                                 c) A U B
d) B-C
e) (-b) U A
​

Answer 1

A) C= {0, 2, 4,6,8,10,12,14,16,18}

B) card A= 4

 card B= 5

C) AUB= {1, 2 ,3, 4, 5,6}

Answer 2

Răspuns:

a)c={0, 2,4,6,8,10,12,14,16,18}

b)card(A)=4 - câte elemente are multimea

card(B)=5

c)A U B={2,3,4} - elementele comune

d)B-C={3,5} - elementele doar din B