Answered

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За час t = 8 діб розпалось 2/5 початкової кількості ядер радіоактивного ізотопу.
Визначити період піврозпаду цього ізотопу (в добах).

Sagot :

Answer:

\left( \frac{1}{2} \right)^{\frac{t}{T}} = 1 - \frac{2}{5}

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