Question

Vă rog repede repede dau coroană și 30 puncte

Answer 1

Răspuns:

a) A U B={-2,-5,3,7,9}

A ∩ B={-5,3,7,9}

A\B={-2}

B\A=Ф

b)AUB={a,b,c,d,m,n,t}

A ∩ B={b,m,n}

A\B={a}

B\A={c,d,t}

c) A={ -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6}

B=Z \ {-2,-1,0,1,2}

AUB=Z

A ∩ B={-6,-5,-4,-3,3,4,5,6}

A\B={-2,-1,0,1,2}

B\A=Z\{-6,-5,-4,-3,3,4,5,6}

d) AUB=Z

A ∩ B=N

A\B=Ф

B\A={-1,-2,-3...., -∞}