Relier Pairs НеравенстваVersion en ligne Неравенства par Lucy Malik 1 17⩽a⩽21 2 a≥15 3 a>15 4 a<9 5 245⩽a⩽250 a={246,247,248,249,250} a={16,17,18,...} a = {15,16,17,18,...} a= {17,18,19,20,21} a={0,1,2,3,4,5,6,7,8}