👤

Doar 9.Va rog repede dau coroana

Doar 9Va Rog Repede Dau Coroana class=

Răspuns :

a. n divide 14 =>n=(1,2,7,14)
b. n={1,2,5,10}
c 4-k={-15,-5,-3,-1,1,3,5,15} cu cond k apartine N
4-k=-15 , k=19
4-k=-5 , k=9. s.a.m.d