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