Question

Macar cateva exercitii , nu toate

Answer 1

Răspuns:

1.

A = [-3, 5)

B = [-4, +infinit)

C = (-infinit, 15)

D = [-2, 2]

E = [-2, 2]

F = (-infinit, -3]

G = (2, +infinit)

H = (0, 2)

I = (3, +infinit)

2.

AnB={-1, 0}

A\B={1, 2, 3}

B\A={-2, 4, 5}

AUB={-2,-1, 0, 1, 2, 3, 4, 5}

AnZ=A

BnN={0, 4, 5}

AUmultimea vidă = A