共50条信息
设\(a=6^{0.4}\),\(b=\log _{0.4}0.5\),\(c=\log _{8}0.4\),则\(a\),\(b\),\(c\)的大小关系是\((\) \()\)
已知\(a={{5}^{{lo}{{{g}}_{2}}3.4}}\),\(b={{5}^{{lo}{{{g}}_{4}}3.6}}\),\(c={{\left( \dfrac{1}{5} \right)}^{{lo}{{{g}}_{3}}0.3}}\),则\((\) \()\)
已知\(a\)、\(b∈(0,1)∪(1,+∞)\),当\(x > 0\)时,\(1 < b^{x} < a^{x}\),则\((\) \()\)
\({{\log }_{3}}\sqrt{27}+{{(\dfrac{8}{125})}^{-\frac{1}{3}}}-{{(\dfrac{3}{5})}^{0}}+\sqrt[4]{{{16}^{3}}}=\_\_\_\_\_\_\_\_\).
计算下列各式的值:
\((1)1.{5}^{ \frac{1}{3}}×\left(- \dfrac{7}{6}\right)+{8}^{0.25}× \sqrt{{\left( \dfrac{2}{3}\right)}^{ \frac{2}{3}}} \);
\((2) \dfrac{1}{2}1g \dfrac{32}{49}1g \sqrt{8}+1g \sqrt{245}+{10}^{1g3} \).
函数\(f(x)=3+{a}^{x+2}(a > 0,且a\neq 1) \)的图象必过定点\(P\)___________.
进入组卷