1) у = 1,7, z = 65/38, x = 1 9/11
2) 2 3/4+7 15/28 = 9 (21+15)/28 = 9 36/28 = 10 8/28 = 10 2/7
3) = -0,213
1) у = 1,7, z = 65/38, x = 1 9/11
2) 2 3/4+7 15/28 = 9 (21+15)/28 = 9 36/28 = 10 8/28 = 10 2/7
3) = -0,213