化简-(2/5)^4

解答

化简

- (\frac{2}{5})^{4}

- \frac{16}{625}

十进制

- 0.0256

求解步骤

- (\frac{2}{5})^{4}

使用指数法则:

(\frac{a}{b})^{c} = \frac{a ^{c}}{b ^{c}}

(\frac{2}{5})^{4} = \frac{2 ^{4}}{5 ^{4}}

= - \frac{2 ^{4}}{5 ^{4}}

2^{4} = 16

= - \frac{16}{5 ^{4}}

5^{4} = 625

= - \frac{16}{625}

s im pl i f y \frac{a ^{23} - b ^{22}}{( a ^{3} + b ^{2} ) ^{2}} + 1

3 x - 2 = 7 - 6 x

- 16 t^{2} + 64 t = 0

s im pl i f y (- 4)^{7}

\frac{6}{5} x + \frac{7}{10} = x - \frac{3}{2}