Question

cu se rezolva ex 1…2?

Answer 1

1 si 2?
la 1 faci calcule,adica 9-8
si la 2 : a b c d

Answer 2

1. 3²-2³=9-8=1

2. A={a,b,c}
B={a,c,d}
A∪B={a,b,c,d}