Question

Cate submultimi are multimea A={2,4,6,8}

Answer 1

are 4 multimi de cate 1 element⇒{2},{4},{6},{8}
are   6 multimi de 2 elem⇒{2,4},{2,6},{2,8},{4,6},{4,8},{6,8}
are 3 multimi de 3 elem {2,4,6},{2,4,8},{4,6,8}
are 1 mult de 4 elem {2,4,6,8}⇒
4+6+3+1=14 submultimi

Answer 2

16 submultimi
multimea vida , {2},{4},{6},{8},{2,4},{2,6} ,{2,8},{4,6},{4,8},{6,8},{2,4,6},{2,4,8},{2,6,8},{4,6,8},{2,4,6,8}.