Question

se dau multimile:
B={y/y ∈ N, y=x+2; x ∈ A}
B=?
C={z/z ∈ N, z=$y^{2}$; y ∈ B}
C=?
Va rog frumos si expicatie ca sa inteleg!

Answer 1

B={y/y ∈ N, y=x+2; x ∈ A}⇒ b⇒∈{ 0,1,2}
C={z/z ∈ N, z=; y ∈ B}⇒y={0,1,2}⇒C∈{2,4,6,8}