Question

Determinati elementele multimii A={xeN | (x+2):5,x=ab

Answer 1

M5={0,5,10,15,20,25,30,35...}
x+2=10
x=10-2=8 nu e bun pt.ca x este de forma ab

x+2=15
x=13
x+2=20
x=18
......
A={13,18,23,28,33,38,43,48,53,58,63,68,73,78,83,88,83,98}