簡約 210^{-7}(2.62)/(0.2)

解

簡約

2 \cdot 1 0^{- 7} \cdot \frac{2.62}{0.2}

\frac{131}{50000000}

十進法表記

0.00000262

解答ステップ

2 \cdot 1 0^{- 7} \cdot \frac{2.62}{0.2}

\frac{2.62}{0.2} = \frac{262}{20}

= 2 \cdot 1 0^{- 7} \cdot \frac{262}{20}

指数の規則を適用する:

a^{- b} = \frac{1}{a ^{b}}

1 0^{- 7} = \frac{1}{1 0 ^{7}}

= 2 \cdot \frac{1}{1 0 ^{7}} \cdot \frac{262}{20}

1 0^{7} = 10000000

= 2 \cdot \frac{1}{10000000} \cdot \frac{262}{20}

2 \cdot \frac{1}{10000000} \cdot \frac{262}{20} = \frac{131}{50000000}

= \frac{131}{50000000}