Question

Va rog repede dau si coroana care raspunde primul

Answer 1

1.submultimi: {7},{8},{9},{78},{89},{79},
2.a)=adevarat    b)fals     c)adevarat    d)adevarat
3.a)A={0,1,14}      b)A={,1,2,3,4,5,6,7,8,9,10,11,12}   B={1,2,3,4,5,6,...,80} 
                                            elementele comune sunt:1,2,3,4,5,6,7,8,9,10,11,12
4.nu stiu sa fac
5.a)B={1,2,3,4,5,6}
   b)submultimile lui A sunt:{1,2,3,4,5,6,7,8,9,10},{1,2,3,4,5,6,7,8,9},{1,2,3,4,5,6,7,8},{1,2,3,4,5,6,7},{1,2,3,4,5,6},{1,2,3,4,5},{1,2,3,4},{1,2,3},{1,2},{1,10},{2,6,4}
6.nu stiu sa fac