Предмет: Математика, автор: Аноним

Правильно или нет?? Помогите, пожалуйста.
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Автор ответа: snow99
1
4^(1/3) ни в коем разе не равно 4^(-3).

{2}^{3x} = {2}^{ \frac{2}{3} } \\ 3x = \frac{2}{3} \\ x = \frac{2}{9}
А так же 4^(-3) не равно 2^(2-3).
Грубейшие ошибки.
Автор ответа: sangers
1

7.

8ˣ=∛4

(2³)ˣ=∛(2)²

2³*ˣ=2²/³

3*x=2/3 |÷3

Ответ: x=2/9.



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