化简 5(1/3)^3

解答

化简

5 (\frac{1}{3})^{3}

\frac{5}{27}

十进制

0.18518 \dots

求解步骤

5 (\frac{1}{3})^{3}

使用指数法则:

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

(\frac{1}{3})^{3} = \frac{1 ^{3}}{3 ^{3}}

= 5 \cdot \frac{1 ^{3}}{3 ^{3}}

1^{3} = 1

= 5 \cdot \frac{1}{3 ^{3}}

3^{3} = 27

= 5 \cdot \frac{1}{27}

5 \cdot \frac{1}{27} = \frac{5}{27}

= \frac{5}{27}

s im pl i f y (2 m - 3 + 7 m^{2}) - (3 - 9 m^{2} - 2 m)

2 x - 1 \geq 0

f a c t or \frac{( \frac{1}{x} - \frac{1}{2} )}{x - 2}

x^{2} - 3 x - 8 = 0

f a c t or 16 m^{4} - 25 m^{2} n^{2} + 9 n^{4}