Testul 3
1) a) A b) F c) nu inteleg ce scrie d) A
2) a) A= {1,2,3,4,5}
c) C= {2,4,8,16,32,64,128,256,512}
d)D={7,77,777,7777,77777}
4) A U B= {1,2,3,4,5,6,7,8} A / B= {2,4,5} B / A = {1,8}
A={2,3,4,5,6,7}
B={1,3,6,7,8}
5) Nu stiu sigur dar cred ca: A={3,5,7} si x = {7}.
6)a) i)A U B = {a,b,c,d,e,f}
ii) = {a,c,d}
iii) = {b}
b) 12
Testul 4
1) A F A A
2) 6 cred
Coroana?
