化简 5.810^{-3}2.17

解答

化简

5.8 \cdot 1 0^{- 3} \cdot 2.17

0.012586

求解步骤

5.8 \cdot 1 0^{- 3} \cdot 2.17

数字相乘:

5.8 \cdot 2.17 = 12.586

= 12.586 \cdot 1 0^{- 3}

= 1 0^{- 3} \cdot 12.586

使用指数法则:

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

1 0^{- 3} = \frac{1}{1 0 ^{3}}

= \frac{1}{1 0 ^{3}} \cdot 12.586

1 0^{3} = 1000

= \frac{1}{1000} \cdot 12.586

\frac{1}{1000} \cdot 12.586 = \frac{12.586}{1000}

= \frac{12.586}{1000}

数字相除:

\frac{12.586}{1000} = 0.012586

= 0.012586

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