Question

Va rog frumos ajutati-ma dau coroana.

Answer 1

A) A= |x| >9 => x= 10,11,12,.......infinit

B=-5<x<sau egal decat 8 =>x= -4,-3,-2,-1,0,1,2,3,4,5,6,7,8

A U B /A reunit B = -4,-3,-2,-1,0,1,2,3,4,5,6,7,8,10,11,12,....infinit

A n B /A intersectat B= multimea vida(nimic)

A/B sau A-B=A(elementele multimii A)

B/A sau B-A=B(elementele multimii B)

Faci la fel si la B