Ответ:
8
Объяснение:
[tex] {7}^{ - 2} = \frac{1}{49} [/tex]
[tex] \frac{1}{49} \times \frac{1}{14} = \frac{1}{686} [/tex]
[tex] { \frac{1}{686} }^{ - \frac{1}{2} } = \sqrt{686} = 7 \sqrt{14} [/tex]
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Ответ:
8
Объяснение:
[tex] {7}^{ - 2} = \frac{1}{49} [/tex]
[tex] \frac{1}{49} \times \frac{1}{14} = \frac{1}{686} [/tex]
[tex] { \frac{1}{686} }^{ - \frac{1}{2} } = \sqrt{686} = 7 \sqrt{14} [/tex]