共50条信息
设\(f(x)=\begin{cases} & {{x}^{2}},x\in [0,1], \\ & 2-x,x\in (1,2] \end{cases}\),则\(\int_{0}^{2}{{}}f(x)dx= \)( )
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\((\) \()\)
\(\int_{0}^{1}{\left( e^{x}{+}2x \right)dx}\)等于 \((\) \()\)
\(∫_{-2}^{2}\left({x}^{2}+1\right)dx= \)____________ .
由曲线\(y^{2}{=}2x\)和直线\(y{=}x{-}4\)所围成的图形的面积\(({ })\)
\(∫_{0}^{1}\left( \sqrt{1-{\left(x-1\right)}^{2}}-{x}^{2}\right)dx \)的值是\((\) \()\)
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 ( )
\((1)\)若\(t=\sqrt{2}\)时,求\(S_{2}\).
\((2)\)若\(t∈(0,2)\),求\(S_{1}+S_{2}\)的最小值.
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( )
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