(6/5)^n=16

解答

(\frac{6}{5})^{n} = 16

n = \frac{4 ln ( 2 )}{ln ( \frac{6}{5} )}

十进制

n = 15.20713 \dots

求解步骤

(\frac{6}{5})^{n} = 16

使用指数运算法则

n ln (\frac{6}{5}) = ln (16)

解

n ln (\frac{6}{5}) = ln (16) : n = \frac{4 ln ( 2 )}{ln ( \frac{6}{5} )}

n = \frac{4 ln ( 2 )}{ln ( \frac{6}{5} )}

4^{2 x - 3} = 1

so l v e f or z, e^{2 x + 2 y + z} = c

8^{x - 2} = 1 6^{5 x + 4}

0.8 = - e^{\frac{- 2 t - ( - 2 )}{7}} + 1

6 = 2^{4 x - 3}