Question

AJUTOR!!!! DAU COROANA!!!!EX 18!!!!100 DE PUNCTE

Answer 1

x²≤25 si x≠ 0⇒ x∈{1,2,3,4,5} ⇒ A={1,2,3,4,5}
x³≤27⇒ x∈{0,1,2,3} ⇒ B={0,1,2,3}

A u B={0,1,2,3,4,5}
A n B={1,2,3}
A - B={4,5}
B - A={0}