簡約-9.3(0.12810^{-9})

解

簡約

- 9.3 \cdot (0.128 \cdot 1 0^{- 9})

- 1.1904 E - 9

解答ステップ

- 9.3 (0.128 \cdot 1 0^{- 9})

1 0^{- 9} = \frac{1}{1000000000}

= - 9.3 \cdot 0.128 \cdot \frac{1}{1000000000}

0.128 \cdot \frac{1}{1000000000} = \frac{0.128}{1000000000}

= - 9.3 \cdot \frac{0.128}{1000000000}

数を割る:

\frac{0.128}{1000000000} = 1.28 E - 10

= - 9.3 \cdot 1.28 E - 10

数を乗じる:

- 9.3 \cdot 1.28 E - 10 = - 1.1904 E - 9

= - 1.1904 E - 9