Question

Ajutatima varog urgent dau coroana!!!!!

Answer 1

39.
a=12,b=17,c=25
40.
a)1,2,3,4,5 
b)1,2,3,4,5,6
c)1,2,3,4,5,6
d)1,2,3,4,5,6,7
41. 
a)-1,-2,-3,-4,-5,-6
b)1,2,3,4,5
42.
a)A={-9,-8,...9}
B={-1,0,1}
A reuniune B=A
A intersectie B=multime vida
A-B = {-9,-8,-7,-6,-5,-4,-3,-2,2,3,4,5,6,7,8,9}
B-A=multime vida 

b)A={-8,-7,...7,8}
B={-4,-3,...7,8}
A reuniune B=A
A intersectie B=B
A-B={-8,-7,-6,-5}
B-A=multime vida

44.
x=4
45.
A,F,A,A 

Sper ca te-am ajutat)