Предмет: Алгебра, автор: bebrixa98

Для функции y=x^3-3x вычислите минимум функции y(min) и наименьшее значение на отрезке [-3;3] значение функции min[-3;3]. В ответ укажите сумму найденных на больший из корней


bebrixa98: *В ответ укажите сумму найденных значений*

Ответы

Автор ответа: crosteal
2

Ответ:Для нахождения минимума функции y(x) сначала найдем ее производную и приравняем ее к нулю:

y'(x) = 3x^2 - 3 = 0

Решим это уравнение:

3x^2 - 3 = 0

x^2 - 1 = 0

(x - 1)(x + 1) = 0

Отсюда получаем два возможных значения x: x = 1 и x = -1.

Теперь найдем значения функции y(x) при этих значениях x:

y(1) = 1^3 - 3(1) = -2

y(-1) = (-1)^3 - 3(-1) = 2

Таким образом, минимум функции y(x) равен -2, а наименьшее значение на отрезке [-3;3] равно -2.

Ответ: -2 + (-2) = -4.

Объяснение:

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