Question

URGENT | A=x|x∈ nr nat , x divizibil 100 , x < 100 B=x|x∈N, x divizibil 10 , x ≤ 50
a)A∪B
b)A∩b
c)A\B
d)B\A

Answer 1

in cazul x divizibil cu 100 => x=0 => A={0}
B= {0,10,20,30,40}
a) A∪B=B
b) A∩B=A
c) A\B=Ф
d) B\A= {10,20,30,40}

O seara buna!