log_{25}(1/5)=x

解答

lo g_{25} (\frac{1}{5}) = x

x = - \frac{1}{2}

十进制表示法

x = - 0.5

求解步骤

lo g_{25} (\frac{1}{5}) = x

交换两边

x = lo g_{25} (\frac{1}{5})

化简

lo g_{25} (\frac{1}{5}) : - \frac{1}{2}

x = - \frac{1}{2}

2 \cdot \frac{π}{3}

- \frac{12}{6}

2 n^{2} + 13 n + 11

4 x^{2} + 31 x = - 42

4 x^{\frac{3}{2}} - 13 x^{\frac{1}{2}} - 12 x^{- \frac{1}{2}}