Предмет: Алгебра, автор: PomagaiteMnepliz

вычисли область определения функции y=√5-x/3
ПОМОГИТЕ ПОЖАЛУЙСТАААААААААА

Ответы

Автор ответа: kofan5342a
1

Ответ:

Для того чтобы вычислить область определения функции, нужно определить, для каких значенийаргумента функция определена.

В данном случае, функция определена только для тех значений x, для которых выражение под знаком корня является неотрицательным:

5 - x/3 ≥ 0

Умножим обе части неравенства на 3:

15 - x ≥ 0

Вычтем из обеих частей 15:

-x ≥ -15

Умножим обе части на -1 и поменяем направление неравенства:

x ≤ 15

Таким образом, функция определена для всех значений x, меньших или равных 15. Область определения функции: (-∞, 15].

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