Question

Aflati cardinalul multimilor:
A = { x ∈ N ║ X < 2001}
B = {x ∈ N* ║x ≤ 1957}
C = {x ∈ N ║ 2 < x < 2002}
Scrieti elementele multimilior:
B = { x ║ x ∈ N*, 2^3 - 5 > x ≤ 3^3-2}

Answer 1

card A=2001
card B=1957
card C=1998