0,2 ^-12 меньше или равно 25 ^ х/2 [-5;0] помогите пожалуйста

0,2 ^-12 меньше или равно 25 ^ х/2 [-5;0] помогите пожалуйста
- Предмет:
  Алгебра
- Автор:
  beetlezpsv
- 6 лет назад

Ответы 1

$0,2^{-12} \leq 25^{\frac{x}{2}}\\\\0,2=\frac{2}{10}=\frac{1}{5}=5^{-1}\\\\(5^{-1})^{-12} \leq (5^2)^{\frac{x}{2}}\\\\5^{12} \leq 5^{x}\\\\12 \leq x\\\\x \geq 12\\\\x\in [\, 12;+\infty)$ Если х Є [-5,0], то решений неравенство на этом сегменте не имеет.
- Автор:
  maritzadavenport
- 6 лет назад
- 0
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0,2 ^-12 меньше или равно 25 ^ х/2 [-5;0] помогите пожалуйста

Ответы 1

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