化简-(1/3)^{-2}

解答

化简

- (\frac{1}{3})^{- 2}

- 9

求解步骤

- (\frac{1}{3})^{- 2}

使用指数法则:

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

(\frac{1}{3})^{- 2} = \frac{1}{( \frac{1}{3} ) ^{2}}

= - \frac{1}{( \frac{1}{3} ) ^{2}}

(\frac{1}{3})^{2} = \frac{1}{9}

= - \frac{1}{\frac{1}{9}}

- \frac{1}{\frac{1}{9}} = - 9

= - 9

s im pl i f y lo g_{10} (4)

\frac{4 x ^{2} - 1}{3} = x (10 x - 9)

x^{2} - 18 x + 58 = 0

f a c t or x y^{4} + x^{4}

8 g + 2 g - 11 = 9