Question

Am nevoie urgent pana la 14:10 pana astazi urgentt dau coroana

Answer 1

Explicație pas cu pas:

ex 1-adevărate toate

ex 2: a)A=[1,3)

b)B=(3,4)

c) C=[-1,+&)

d)D=(-&,5)

ex 3: A={-1,0,1,2,3,4}

B={0,1,2,3,4,5,6,7}

AUB={-1,0,1,2,3,4,5,6,7}=[-1,7]

A^B={0,1,2,3,4}=[0,4]