优优班--学霸训练营 > 知识点挑题
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            • 1.

              \((1)\)已知\(i\)是虚数单位,计算\(\dfrac{1-i}{{{\left( 1+i \right)}^{2}}}=\)________.

              \((2)\int_{-3}^{3}{({{x}^{2}}-2\sin x)dx=}\)________.

              \((3)\)已知函数\(f(x)=x^{2}+2x+a\ln x\),若函数\(f(x)\)在\((0,1)\)上单调,则实数\(a\)的取值范围是_____

              \((4)\)八个人分两排坐,每排四人,限定甲必须坐在前排,乙、丙必须坐在同一排,则坐法种数为____

            • 2.

              \(∫_{0}^{2}(3{x}^{2}+k)dx=10 \),则\(k=\)_________________

            • 3. 在\(\triangle ABC\)中,\(a=2\),\(b{=}2\sqrt{2}\),\(B=45^{\circ}\),则角\(A\)等于\((\)  \()\)
              A.\(60^{\circ}\)    
              B.\(60^{\circ}\)或\(120^{\circ}\)     
              C.\(30^{\circ}\)      
              D.\(30^{\circ}\)或\(150^{\circ}\)
            • 4.

              \(\int_{0}^{1}{(\sqrt{1-{{(x-1)}^{2}}}}-2x)dx=\)________________.

            • 5. 不等式\(\dfrac{x{-}1}{2x{+}1}\leqslant 0\)的解集为\((\)  \()\)
              A.\(({-}\dfrac{1}{2}{,}1{]}\)
              B.\({[-}\dfrac{1}{2}{,}1{]}\)

              C.\(({-∞}{.}{-}\dfrac{1}{2}){∪[}1{,}{+∞})\)
              D.\(({-∞}{,}{-}\dfrac{1}{2}{]∪[}1{,}{+∞})\)
            • 6.

              \((1)\)曲线\(f(x)=\sqrt{2x-4}\)在点\((4,f(4))\)处的切线方程为_____________________.

              \((2)\int_{0}^{2}{\left( \sqrt{4-{{x}^{2}}}+x \right)dx}\)的值等于_____________.

              \((3)\)已知复数\(z=x+yi\),且\(\left| z-2 \right|=\sqrt{3}\),则\(\dfrac{y}{x}\)的最大值为        

              \((4)\)高斯是德国著名的数学家,享有“数学王子”之称,以他的名字“高斯”命名的成果达\(110\)个,设\(x\in R\),用\([x]\)表示不超过\(x\)的最大整数,并用\(\{x\}=x-[x]\)表示\(x\)的非负纯小数,则\(y=[x]\)称为高斯函数,已知数列\(\{{{a}_{n}}\}\)满足\({{a}_{1}}=\sqrt{3},{{a}_{n+1}}=[{{a}_{n}}]+\dfrac{1}{\{{{a}_{n}}\}},(n\in {{N}^{*}})\),则\({{a}_{2017}}=\)__________.

            • 7.

              \(\int_{0}^{1}{\left( {{e}^{x}}+2x \right)dx}\)等于(    )

              A.\(1\)                  
              B.\(e-1\)
              C.\(e+1\)
              D.\(e\)
            • 8.

              已知\(a=\dfrac{1}{\pi }\int_{-2}^{2}{\left( \sqrt{4-{{x}^{2}}}-ex \right)}dx\),若\({{\left( 1-ax \right)}^{201{7}}}={{b}_{0}}+{{b}_{1}}x+{{b}_{2}}{{x}^{2}}+\ldots +{{b}_{201{7}}}{{x}^{201{7}}}\left( x\in R \right)\),则\(\dfrac{{{b}_{1}}}{2}+\dfrac{{{b}_{2}}}{{{2}^{{2}}}}+\ldots +\dfrac{{{b}_{201{7}}}}{{{2}^{201{7}}}}\)的值为

              A.\(0\)
              B.\(-1\)
              C.\(1\)
              D.\(e\)
            • 9.

              \(∫_{0}^{2}\left( \sqrt{4-{x}^{2}}+x\right)dx = \)______.

            • 10.

              若\(f(x)={{x}^{2}}+2\int_{0}^{1}{f(x)dx,}\)则\(\int_{0}^{1}{f(x)dx=}\)        

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