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            • 1.

              已知函数\(y={\log }_{ \frac{1}{2}}\left({x}^{2}-1\right) \)的单调递增区间为_________.

            • 2.

              已知函数\(f(x)=\left( \left. \dfrac{1}{3} \right. \right)^{ax^{2}-4x+3} \).

              \((1)\)若\(a=-1\),求\(f(x)\)的单调区间;

              \((2)\)若\(f(x)\)有最大值\(3\),求\(a\)的值.

            • 3.

              已知函数\(f(x)\)是\(R\)上的奇函数,若\(f(x)\)在\((0,+∞)\)上单调递增,且\(f(2)=0\),则\(f(x-2) > 0\)的解集为

              A.\((0,2)∪(4,+∞)\)
              B.\((-∞,0)∪(4,+∞)\)
              C.\((0,2)∪(2,+∞)\)
              D.\((0,2)∪(2,4)\)
            • 4.

              已知函数\(f\)\((\)\(x\)\()\)\(=\)\( \sqrt{{x}^{2}-2x-3} \),则该函数的单调递增区间为\((\) \()\)

              A.\(( \)\(-\) \(∞\),\(1]\)                 
              B.\([3, \)\(+\) \(∞\)\()\)          
              C.\(( \)\(-\) \(∞\)\(-\)\(1]\)          
              D.\([1, \)\(+\) \(∞\)\()\)
            • 5.

              函数\(f(x)=\ln (x^{2}-2x-8)\)的单调递增区间是\((\)  \()\)

              A.\((-∞,-2)\)                               
              B.\((-∞,1)\)

              C.\((1,+∞)\)                                   
              D.\((4,+∞)\)
            • 6.

              函数\(y={{\log }_{\frac{1}{2}}}\left( -{{x}^{2}}+2x \right)\)的单调递增区间是                  

            • 7. 已知函数\(f(x)=2\sin ^{2}(x+ \dfrac {3π}{2})+ \sqrt {3}\sin (π-2x)\)
              \((1)\)若\(x∈[0, \dfrac {π}{2}]\),求\(f(x)\)的取值范围;
              \((2)\)求函数\(y=\log _{ \frac {1}{2}}f(x)\)的单调增区间.
            • 8.

              若当\({{a}_{0}}\)时,函数\(f\left( x \right)={{a}^{\left| x \right|}}\)始终满足\(0 < \left| f\left( x \right) \right|\leqslant 1\),则函数\(y={lo}{{{g}}_{a}}\left| \dfrac{1}{x} \right|\)的图象大致为\((\)     \()\) 

              A.
              B.
              C.
              D.
            • 9.

              函数\(f(x)=\begin{cases}{\log }_{2}(1-x)+1,-1\leqslant x < 0 \\ {x}^{3}-3x+2,0\leqslant x\leqslant a\end{cases} \)的值域是\([0,2]\),则实数的范围是(    )

              A.\([0, \sqrt{2} ]\)
              B.\([1, \sqrt{2} ]\)
              C.\([1,\sqrt{3}]\)
              D.\([\sqrt{3},2]\)
            • 10.

              函数\(f\left(x\right)={\left( \dfrac{1}{3}\right)}^{-{x}^{2}-4x+3} \)的单调递减区间为 ______

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