Question

Dau coroana!!!!!!!!!!!!! ​

Answer 1

Răspuns:

C={-2,-1,1,}

D={,0,1,2}

CUD ={-2,-1,1,0,2}

DUC={-2,-1,1,0,2}

CHD={1}

DHC={1}

C-D={-2,-1}

D-C={0,2}