
Reunião e Interseção de Números Reais
Authored by Susana Marques
Mathematics
9th Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Qual é a união dos conjuntos A = {1, 2, 3} e B = {3, 4, 5}?
{2, 5}
{3, 4}
{1, 2, 3, 4, 5}
{1, 2, 3}
2.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Determine a interseção dos conjuntos C = {2, 4, 6} e D = {1, 2, 3, 4}.
{4, 6}
{2, 3, 4}
{1, 3}
{2, 4}
3.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Se E = {x ∈ R | x > 0} e F = {x ∈ R | x < 5}, qual é a união de E e F?
{x ∈ R | x ≥ 5}
{x ∈ R | x < 0}
{x ∈ R | 0 < x < 5}
{x ∈ R | 0 < x ≤ 5}
4.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Calcule a interseção dos conjuntos G = {a, b, c} e H = {b, c, d}.
{b, c}
{a, d}
{a, c, d}
{b, d}
5.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Quais são as propriedades da união de conjuntos?
Comutatividade, Associatividade, Idempotência, Contenção, Inclusão.
Transitividade
Simetria
Distributividade
6.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Se I = {1, 2, 3} e J = {2, 3, 4}, qual é a relação entre I e J?
I e J têm interseção não vazia.
I é um subconjunto de J.
I e J são disjuntos.
J é um subconjunto de I.
7.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Qual é a união dos conjuntos K = {x | x é par} e L = {x | x é ímpar}?
{x | x é positivo}
{x | x é primo}
{x | x é negativo}
{x | x é inteiro}
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