n^3=0.008

解

n^{3} = 0.008

n = \frac{1}{5}, n = - \frac{1}{10} + \frac{3}{10} i, n = - \frac{1}{10} - \frac{3}{10} i

解答ステップ

n^{3} = 0.008

x^{3} = f (a)

では, 解は

x = 3 f (a), 3 f (a) \frac{- 1 - 3 i}{2}, 3 f (a) \frac{- 1 + 3 i}{2}

n = 3 0.008, n = 3 0.008 \frac{- 1 + 3 i}{2}, n = 3 0.008 \frac{- 1 - 3 i}{2}

3 0.008 = \frac{1}{5}

簡素化

3 0.008 \frac{- 1 + 3 i}{2} : - \frac{1}{10} + \frac{3}{10} i

簡素化

3 0.008 \frac{- 1 - 3 i}{2} : - \frac{1}{10} - \frac{3}{10} i

n = \frac{1}{5}, n = - \frac{1}{10} + \frac{3}{10} i, n = - \frac{1}{10} - \frac{3}{10} i