Question

Precizati valoarea de adevar a propozitiilor: a) daca 15|a,atunci 3|a, unde a∈N; b)daca 17| a si a |x,atunci 17|x,unde a∈N*, x∈N c)daca 2 |a si 4|a,atunci 8|a,unde a∈N

Answer 1

a=Adevarat,b=Adevarat,c=Adevarat.