e^{3k}=64

解答

e^{3 k} = 64

k = 2 ln (2)

十进制

k = 1.38629 \dots

求解步骤

e^{3 k} = 64

使用指数运算法则

3 k = ln (64)

解

3 k = ln (64) : k = 2 ln (2)

k = 2 ln (2)

\frac{1000}{27} = (1312)^{t}

6 \cdot e^{0.25 x} = 9

30 = 24 + 45 e^{- 0.587 t}

so l v e f or x, 1 - e^{- x} = x

(e^{e})^{x} = 2