化简 (-1/4)^{-3}

解答

化简

(- \frac{1}{4})^{- 3}

- 64

求解步骤

(- \frac{1}{4})^{- 3}

使用指数法则:

a^{- b} = \frac{1}{a ^{b}}

(- \frac{1}{4})^{- 3} = \frac{1}{( - \frac{1}{4} ) ^{3}}

= \frac{1}{( - \frac{1}{4} ) ^{3}}

(- \frac{1}{4})^{3} = - \frac{1}{64}

= \frac{1}{- \frac{1}{64}}

\frac{1}{- \frac{1}{64}} = - 64

= - 64

4.5 c - 2.8 = 3 (1.5 c - 1.9)

n^{2} - 18 n + 66 = 0

x^{2} + 9 x - 5 = 0

f a c t or - a^{2} + 3 a + 4

x^{2} + (\frac{2}{3})^{2} = 1