化简 x^{-1/2}*x

解答

化简

x^{- \frac{1}{2}} \cdot x

x^{\frac{1}{2}}

求解步骤

x^{- \frac{1}{2}} x

使用指数法则:

a^{b} \cdot a^{c} = a^{b + c}

x^{- \frac{1}{2}} x = x^{- \frac{1}{2} + 1}

= x^{- \frac{1}{2} + 1}

- \frac{1}{2} + 1 = \frac{1}{2}

= x^{\frac{1}{2}}

\frac{3}{4} + \frac{7}{10} y = \frac{7}{20} - \frac{2}{5} y

\frac{7 + n}{6} = - 1

f a c t or 2 x^{2} y - 6 x y^{2} + 7 x y

x^{2} = 361

s im pl i f y \frac{3}{4 ( ( \frac{1}{4} ) + 2 ) ^{\frac{5}{2}}}