Question

fie multimile :
A={x apartine nr naturale /x=2 la putterea a +2 la puterea b,unde a,b apartin{ 0,1,2}}
B={y apartine numerelor naturale stelare (*) cu proprietatea y=x-1,x partine A}

Answer 1

X= 2⁰+2⁰=1+1=2
X=2⁰+2¹= 1+2=3
X=2⁰+2²= 1+4=5
X=2¹+2¹= 2+2=4
X=2¹+2²= 2+4=6
X=2²+2²= 4+4=8
A= {2,3,4,5,6,8}
B= {1,2,3,4,5,7}