Question

Determinati x in:
a) 9/x apartine N
b) 12/x-2 apartine N
c) -15/x apartine Z
d) -16/x-3 apartine Z



Cu explicatii, multumesc mult, dau coroana

Answer 1

daca aparţine lui N inseamna ca contine doar nr naturale pozitive
daca, aparţine lui Z atunci nr sunt atat negative cat si pozitive
a) x={0,1,3,9}
b) x={2,3,4,5,6,8,14}
c) x={-15,-5,-3,0,1,3,5,15}
d) x={-13,-5,-1,3,11,19}