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            • 1.

              设\(f(x)=\begin{cases} & {{x}^{2}},x\in [0,1], \\ & 2-x,x\in (1,2] \end{cases}\),则\(\int_{0}^{2}{{}}f(x)dx= \)(    )

              A.\(\dfrac{3}{4}\)
              B.\(\dfrac{4}{5}\)
              C.\(\dfrac{5}{6}\)
              D.不存在
            • 2.

              设\(A=\left\{ \left.\left(x,y\right) \right|0 < x < m,0 < y < 1\right\} \),\(s\)为\({{(e+1)}^{n}}\)的展开式的第一项\((e\)为自然对数的底数\()\),\(m=\sqrt[n]{s}\),若任取\(\left(a,b\right)∈A \),则满足\(ab > 1\)的概率是\((\)   \()\)

              A.\(\dfrac{2}{e}\)
              B.\(\dfrac{1}{e}\) 

              C.\(\dfrac{e-2}{e}\)
              D.\(\dfrac{e-1}{e}\)
            • 3.

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

              A.\(1\)
              B.\(e{-}1\)
              C.\(e\)
              D.\(e{+}1\)
            • 4.

              \(∫_{-2}^{2}\left({x}^{2}+1\right)dx= \)____________ .

            • 5. 在\(\mathbf{{\triangle }ABC}\)中,角\(\mathbf{A}\mathbf{{,}}\mathbf{B}\mathbf{{,}}\mathbf{C}\)对的边分别为\(\mathbf{a}\mathbf{{,}}\mathbf{b}\mathbf{{,}}\mathbf{c}\),且\(\mathbf{c{=}2}\mathbf{{,}}\mathbf{C{=}}\mathbf{60}^{\mathbf{{∘}}}\).
              \(\mathbf{(1)}\)求\(\dfrac{\mathbf{a{+}b}}{\mathbf{\sin}\mathbf{A{+}}\mathbf{\sin}\mathbf{B}}\)的值;
              \(\mathbf{(2)}\)若\(\mathbf{a{+}b{=}ab}\),求\(\mathbf{{\triangle }ABC}\)的面积\(\mathbf{S}_{\mathbf{{\triangle }ABC}}\).
            • 6.

              由曲线\(y^{2}{=}2x\)和直线\(y{=}x{-}4\)所围成的图形的面积\(({  })\)

              A.\(18\)                                       
              B.\(19\)                                       
              C.\(20\)                                       
              D.\(21\)
            • 7.

              \(∫_{0}^{1}\left( \sqrt{1-{\left(x-1\right)}^{2}}-{x}^{2}\right)dx \)的值是\((\)   \()\)           

              A. \( \dfrac{π}{4}- \dfrac{1}{3} \)
              B.\( \dfrac{π}{4}-1 \)
              C.\( \dfrac{π}{2}- \dfrac{1}{3} \)
              D.\( \dfrac{π}{2}-1 \)
            • 8.

              已知一质点做自由落体运动,其速度\(v=gt\),则质点从\(t=0\)到\(t=2\)所经过的路程为 (    )

              A.\(g\)
              B.\(2g\)
              C.\(3g\)
              D.\(4g\)
            • 9. 已知\(S_{1}\)为直线\(x=0\),\(y=4-t^{2}\)及\(y=4-x^{2}\)所围成图形的面积,\(S_{2}\)为直线\(x=2\),\(y=4-t^{2}\)及\(y=4-x^{2}\)所围成图形的面积\((t\)为常数\()\).

                  \((1)\)若\(t=\sqrt{2}\)时,求\(S_{2}\).

                  \((2)\)若\(t∈(0,2)\),求\(S_{1}+S_{2}\)的最小值.

            • 10.

              已知复数\(z=a+(a-2)i(a\in R,i\)为虚数单位\()\)为实数,则\(\int_{\ 0}^{\ a}{(\sqrt{4-{{x}^{2}}}}+x)dx\)的值为(    )

              A.\(2+\pi \)
              B.\(2+\dfrac{\pi }{2}\)
              C.\(4+2\pi \)
              D.\(4+4\pi \)
            0/40

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