Question

Cate submultimi au multimile A={1,2}, B={x,y,z}, C={1,2,3,4}. Ce observati?

Answer 1

A are 3 submultimi:{1};{2};multimea vida(0 taiat)
B are 7 submultimi:{x} ;{y} ;{z} ;{x;y} ;{y;z} ;{x;z} ;multimea vida
C are 15 submultimi:{1};{2};{3};{4};{1,2};{2,3};{3,4};{1,3};{2,4};{1,4};{1,2,3};{2,3,4};{1,3,4};{1,2,4};multimea vida... La observatie nu stiu ce ar trebui sa scrii... Dar sper ca ti-am fost de ajutor!! :)