Ответ:
[-5; 13]
Пошаговое объяснение:
-1 ≤ sin9x ≤ 1
-9 ≤ 9sin9x ≤ 9
4 - 9 ≤ 4 + 9sin9x ≤ 4 + 9
-5 ≤ y ≤ 13
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Ответ:
[-5; 13]
Пошаговое объяснение:
-1 ≤ sin9x ≤ 1
-9 ≤ 9sin9x ≤ 9
4 - 9 ≤ 4 + 9sin9x ≤ 4 + 9
-5 ≤ y ≤ 13