Question

dados os conjuntos : A={0,1,2,3,4,5,6,7,8,9,...,20} B={12,13,15,16,} C={4,5,7,10} D={9,12,14,16,18,} COMPLETE COM OS SÍMBOLOS E, E/,C,C/ : a) {12,15,16}....A , b)19...B , c)B....A, d)15....D, e)C....B, f){4,5,10,}....C, g) A....D, h)10....A 

Answer 1

A = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}
B = {12,13,15,16}
C = {4,5,7,10 }
D = {9,12,14,16,18 }
Complete com os símbolos :∈;∉;⊂;⊄
a){12,15,16}  ⊂  A
b) 19   ∉  B
c)B ⊂ A
d)15  ∉ D
e)C  ⊄  B
f) {4,5,10 } ⊂ C
g)A  ⊄  D
h) 10 ∈  A