展开 0.05(1-(4,0)/(84000,0))

解答

展开

0.05 (1 - \frac{4 , 0}{84000 , 0})

1 \cdot 0.05 - 0.05 \cdot \frac{4 \cdot 0 ,}{84000 \cdot 0 ,}

求解步骤

0.05 (1 - \frac{4 , 0}{84000 , 0})

= 0.05 (1 - \frac{4 \cdot 0 ,}{84000 \cdot 0 ,})

使用分配律:

a (b - c) = ab - a c

a = 0.05, b = 1, c = \frac{4 , 0}{84000 , 0}

= 0.05 \cdot 1 - 0.05 \cdot \frac{4 , 0}{84000 , 0}

= 1 \cdot 0.05 - 0.05 \cdot \frac{4 \cdot 0 ,}{84000 \cdot 0 ,}

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