Question

2. Өрнектің мәнін табыңыз: \( \frac{2^{5} \cdot\left(2^{3}\right)^{3}}{2^{13}} \) A) 2 B) 4 C) 6 D) 8 E) 16

Ask by Matthews French. in Kazakhstan
Feb 13,2025

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Answer

Ответ: 2, вариант A.

Solution

Рассмотрим выражение:   (2⁵ · (2³)³) / 2¹³. Сначала упростим (2³)³, применяя правило степени степени: (aᵇ)ᶜ = a^(b·c):   (2³)³ = 2^(3·3) = 2⁹. Теперь получаем:   (2⁵ · 2⁹) / 2¹³. При умножении степеней с одним основанием складываем показатели:   2⁵ · 2⁹ = 2^(5+9) = 2¹⁴. Таким образом, выражение становится:   2¹⁴ / 2¹³. При делении степеней с одним основанием вычитаем показатель в знаменателе из показателя в числителе:   2¹⁴ / 2¹³ = 2^(14−13) = 2¹ = 2. Ответ: 2. Таким образом, правильный ответ – вариант A.

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Алдымен өрнекті шешу кезінде көрсеткіштерді жинақтайық. \(2^{5} \cdot\left(2^{3}\right)^{3} = 2^{5} \cdot 2^{9} = 2^{14}\). Одан кейін \( \frac{2^{14}}{2^{13}} = 2^{14-13} = 2^{1} = 2\). Сондықтан, өрнектің мәні 2 болады. Дұрыс жауап: A) 2.

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