Объяснение:
a), x = a, y = 3
= 3
a = 63
b) y(0) = 0
y (16) = 4
y ∈ [0;4]
c) 11² = 121
19² = 361
x ∈ [121;361]
d) ≤ 4
0 ≤ x ≤ 16
x∈ [0;16]
= 3
≤ 4
