deci dupa cum ai spus tu N in carte la tine nu mai are in fata nimic de exemplu N*
te ajut eu :
A=0,1,2,3,
B=0,1,2,3
=> A/B = 0/0, 0/1, 0/2, 0/3 ,1/0, 1/1, 1/2, 1/3 , 2/0 , 2/1, 2/2, 2/3 , 3/0, 3/1, 3/2, 3/3
sau daca in carte este asa N* tu sa scrii :
A=1,2,3,
B=1,2,3,
=> A/B= 1/1, 1/2, 1/3 , 2/1, 2/2, 2/3,3/1, 3/2, 3/3