Question

Va rooooooooog muuuuuuuuuuuulllltttttt

Answer 1

Răspuns:

A={0,1,2,3}

B={,-2-1,0,1,2,3,4}

A,reuniuneB -{ -2,-1,0,1,2,3,4}

Aintersectie B-{ 0,1,2,3}

A/B -{ multime vidă }

B/A-{ -2,-1,4 }

Answer 2

Răspuns:

A={(-oo;4);(4;+oo)}

-x<4. x>4

+x<4. x aparține {(-oo4);(4+oo)}

B={-2-1;0;1;2;3;4}

AUB={-oo;+oo}

AnB={-2;-1;0;1;2;3;5;+oo}

B\A={4}

A\B={(-oo ;-3);4;(5;+oo)}