02.04.2022

Найдите значение выражения (1/9a + 1/3a) * a вквадрате 2/8 при а =9

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Алгебра

Вопрос школьника по предмету Алгебра

Найдите значение выражения (1/9a + 1/3a) * a вквадрате 2/8 при а =9

Ответ учителя по предмету Алгебра

(19*9+1/3*9)*9^2*2/8=(1/81+1/27)*9^2*2/8=1*1+3*1/81*9^2/8=4/81*81*2/8=4*2/8=8/8=1

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Помогите пожалуйста,
Подберите корень уравнения
(х-9)х=36
Х-неизвестна (все неизвестные должны быть одинаковые)
96 санынның 70% табу
где принимаются нанотехнологии?