共50条信息
设\(f(x)=\dfrac{{{9}^{x}}}{{{9}^{x}}+3}\),则\(f(\dfrac{1}{2018})+f(\dfrac{2}{2018})+...+f(\dfrac{2017}{2018})=\)________________;
\({{\log }_{3}}\sqrt{27}+{{(\dfrac{8}{125})}^{-\frac{1}{3}}}-{{(\dfrac{3}{5})}^{0}}+\sqrt[4]{{{16}^{3}}}=\_\_\_\_\_\_\_\_\).
计算下列各式的值:
\((1)1.{5}^{ \frac{1}{3}}×\left(- \dfrac{7}{6}\right)+{8}^{0.25}× \sqrt{{\left( \dfrac{2}{3}\right)}^{ \frac{2}{3}}} \);
\((2) \dfrac{1}{2}1g \dfrac{32}{49}1g \sqrt{8}+1g \sqrt{245}+{10}^{1g3} \).
计算\([{\log }_{ \frac{1}{9}}3-(-8{)}^{ \frac{2}{3}}]×0.{125}^{ \frac{1}{3}} =\) .
已知\(a=2^{1.3}\) , \(b=4^{0.7}\) , \(c=\ln 6\),则\(a\),\(b\),\(c\)的大小关系为\((\) \()\)
进入组卷