Question

daca (n+1)|(5n+3) atunci numarul natural n apartine (.....)​

Answer 1

Explicație pas cu pas:

n+1|5n+3

n+1|n+1=>n+1|5n+5

=>n+1|5n+5-5n-3=>n+1|2 => n+1€D2 in N =>

n+1€{1,2} => n€{0,1}