共50条信息
计算\(\int{\begin{matrix} & 2\pi \\ & 0 \\ \end{matrix}}|\sin x|dx=\)_______________.
\(∫_{0}^{2}(3{x}^{2}+k)dx=10 \),则\(k=\)_________________
\(∫_{−1}^{1}( \sqrt{1−{x}^{2}}+\sin x)dx =\)_________.
\(\int_{0}^{2\mathrm{ }\!\!\pi\!\!{ }}{\sin (x+\dfrac{\mathrm{ }\!\!\pi\!\!{ }}{6})dx={ }\!\!\_\!\!{ }\!\!\_\!\!{ }\!\!\_\!\!{ }\!\!\_\!\!{ }\!\!\_\!\!{ }\!\!\_\!\!{ }\!\!\_\!\!{ }\!\!\_\!\!{ }}\).
函数\(f\)\((\)\(x\)\()=\begin{cases}x+1,-1\leqslant x < 0, \\ \cos x,0\leqslant x\leqslant \dfrac{π}{2}\end{cases} \)的图像与\(x\)轴所围成的封闭图形的面积为________.
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