优优班--学霸训练营 > 知识点挑题
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            • 1.

              已知\(f(x)\)为偶函数且\(\int_{0}^{6}{f(x)dx=8}\),则\(\int_{-6}^{6}{f(x)dx=}\)                  \((\)   \()\)

              A.\(0\)
              B.\(4\)
              C.\(16\)
              D.\(64\)
            • 2.

              \(∫_{0}^{1}\left|{x}^{2}-1\right|dx= \)  \((\)    \()\)

              A.\(\dfrac{2}{3} \)
              B.\(4\)
              C.\(\dfrac{13}{3} \)
              D.\(\dfrac{14}{3} \)
            • 3. 过原点的直线\(l\)与抛物线\(y=x^{2}-2ax(a > 0)\)所围成的图形面积为\( \dfrac{9}{2}a^{3}\),则直线\(l\)的方程为\((\)  \()\)
              A.\(y=ax\)           
              B.\(y=±ax\)           
              C.\(y=-ax\)        
              D.\(y=-5ax\)
            • 4.

              从图中所示的矩形\(OABC\)区域内任取一点\(M(x,y)\),则点\(M\)取自阴影部分的概率为\((\)    \()\)


              A.\( \dfrac{1}{3}\)
              B.\( \dfrac{1}{2}\)            
              C.\( \dfrac{1}{4}\)
              D.\( \dfrac{2}{3}\)
            • 5.

              已知函数\(f(x)=\begin{cases}{x}^{2}  (x\leqslant 0) \\ \sqrt{4-{x}^{2}}(x > 0)\end{cases} \),则\(∫_{-1}^{2}f(x)dx= (\)    \()\)

              A.\(π- \dfrac{1}{3} \)
              B.\(π+ \dfrac{1}{3} \)
              C.\(\dfrac{π}{4}+ \dfrac{1}{3} \)
              D.\(\dfrac{π}{2}- \dfrac{1}{3} \)
            • 6.

              直线\(y=4x\)与曲线\(y={{x}^{3}}\)围成图形的面积为\((\)    \()\)

              A.\(2\)                  
              B.\(4\)                
              C.\(6\)                  
              D.\(8\)
            • 7.

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

              A.\(-1\)
              B.\(-\dfrac{1}{3}\)
              C.\(\dfrac{1}{3}\)
              D.\(1\)
            • 8. 已知\(\int_{_{1}}^{^{3}}f(x)dx=56\),则\((\)  \()\)
              A.\(\int_{_{1}}^{^{2}}\)\(f(x)dx=28\)   
              B.\(\int_{_{2}}^{^{3}}\)\(f(x)dx=28\)
              C.\(\int_{_{1}}^{^{2}}\)\(2f(x)dx=56\)  
              D.\(\int_{_{1}}^{^{2}}\)\(f(x)dx+\)\(\int_{_{2}}^{^{3}}\)\(f(x)dx=56\)
            • 9. 若函数 \(f\)\(( \)\(x\)\()=\) \(x^{m}\)\(+\) \(nx\)的导函数是 \(f\)\({{"}}( \)\(x\)\()=2\) \(x\)\(+1\),则\(∫13f(-x)dx= \)(    ) 
              A.\(1\)      
              B.\(2\)      
              C.\( \dfrac{4}{3} \)
              D.\( \dfrac{14}{3} \)
            • 10.

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

              A.\(-1\)
              B.\(-\dfrac{1}{3}\)
              C.\(\dfrac{1}{3}\)
              D.\(1\)
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