Răspuns :
a) x5<75
x∈{1,2,3,4,5,6}
b) x45>645
x∈{7,8,9}
a) X5<75
X={1, 2, 3, 4, 5, 6}
15<75
25<75
35<75
45<75
55<75
65<75
b) X45>645
X={7, 8, 9}
745>645
845>645
945>645
a) x5<75
x∈{1,2,3,4,5,6}
b) x45>645
x∈{7,8,9}
a) X5<75
X={1, 2, 3, 4, 5, 6}
15<75
25<75
35<75
45<75
55<75
65<75
b) X45>645
X={7, 8, 9}
745>645
845>645
945>645