17/11 < 19+n/13
(19+n)11 < 17*13
(19+n) < 221/11
n < 221/11 - 19 amplifici pe 19 cu 11
n < 221/11 - 209/11
n < 12/11
n < 1,09 iar n apartine N
deci A ={0,1}
11/17 </ 5/(3+2m)
11(3+2m) </ 17*5
11(3+2m) </ 85
3+2m </ 85/11
2m </ 85/11 - 3
2m </ 85/11 -33/11
2m </ 52/11
m </ 52/11 * 1/2
m </ 26/11
m </ 2,36
deci B ={0,1,2}
