共50条信息
已知\(2^{x}=3\),\({\log }_{2} \dfrac{4}{3}=y \),则\(x+y\)的值等于________.
求值\((\)Ⅰ\()(3 \dfrac{3}{8}{)}^{ \frac{2}{3}}(5 \dfrac{4}{9}{)}^{0.5}+[(-2{)}^{3}{]}^{- \frac{4}{3}}÷0.{0625}^{0.25}-(-π{)}^{0} \)
\((\)Ⅱ\(){2}^{{\log }_{2} \frac{1}{4}}+( \sqrt{2}-1{)}^{\ln 1}+ \dfrac{1}{1+{\log }_{2}3}-{\log }_{36} \dfrac{1}{9} \)
若\(x\in \left( {{e}^{-1}},1 \right)\),\(a=\ln x\),\(b=( \dfrac{1}{2} )^{\ln x}\),\(c=e^{\ln x}\),则\(a\),\(b\),\(c\)的大小关系为
已知函数\(f(x)=\begin{cases} & {{\log }_{\frac{1}{2}}}x,x > 1 \\ & \dfrac{1}{{{2}^{x-1}}},x\leqslant 1 \end{cases}\),则\(f(f(4)) =\)( )
计算:\({3}\sqrt{{12}}\div {3}\sqrt{\dfrac{{1}}{{3}}}{-2}\sqrt{{3}}{-}\left| \sqrt[{3}]{{8}}{-4} \right|{-}{{\left( \dfrac{{1}}{{2}} \right)}^{{-2}}}\)结果为\((\) \()\)
进入组卷