Question

A={x,x∈N, 2•(x+1)≤6}
B={x,x∈N, x+2=4 sau x+2<5}
Ce relatii au A si B?
Va rog urgent dau coroana si multe puncte

Answer 1

A= (-∞ ;2]

x∈N=> x∈[0,2] adica x=0; 1; 2

B= ●x+2=4; x∈N => x=2

●x+2<5; x∈ (-∞; 3); dar x∈N => x=0; 1; 2