Question

scrieti toate submultimile multimi:A=(a,b,c) helpp my plss

Answer 1

A1={a}
A2={b}
A3={c}

A1;2={a,b}
A2;3={b,c}
A3;1={a,c}

Answer 2

submultimile lui A sunt::
∅ ; [a} ; {b) ; {c) ; {a;b} ; (a;c} ; (b;c} ; {a;b;c)