展开 200(-e^{1/2}+1)

解答

展开

200 (- e^{\frac{1}{2}} + 1)

- 200 e^{\frac{1}{2}} + 200

十进制

- 129.74425 \dots

求解步骤

200 (- e^{\frac{1}{2}} + 1)

使用分配律:

a (b + c) = ab + a c

a = 200, b = - e^{\frac{1}{2}}, c = 1

= 200 (- e^{\frac{1}{2}}) + 200 \cdot 1

使用加减运算法则

+ (- a) = - a

= - 200 e^{\frac{1}{2}} + 200 \cdot 1

数字相乘:

200 \cdot 1 = 200

= - 200 e^{\frac{1}{2}} + 200

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