x^{252}=0.7

解

x^{252} = 0.7

x = 252 \frac{7}{10}, x = - 252 \frac{7}{10}

十進法表記

x = 0.99858 \dots, x = - 0.99858 \dots

解答ステップ

x^{252} = 0.7

x^{n} = f (a)

の場合, n は偶数, 解は

x = n f (a), - n f (a)

x = 252 0.7, x = - 252 0.7

252 0.7 = 252 \frac{7}{10}

- 252 0.7 = - 252 \frac{7}{10}

x = 252 \frac{7}{10}, x = - 252 \frac{7}{10}