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Notes in 03二重积分计算(换元法)

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Published 10/05/2024 二重积分换元法定理: 设 \( f(x, y) \) 在闭区域 \( D \) 上连续, 若变换 \( T:\left\{\begin{array}{l}x=x(u, v) \\ y=y(u, v)\end{array}\right. \),将 \( \boldsymbol{u O v} \) 平面…
Published 10/05/2024 (2018数3) 设平面域 \( D \) 由曲线 \( y=\sqrt{3\left(1-x^{2}\right)} \) 与直线 \( y=\sqrt{3} x \) 及 \( y \) 轴围成, 计算二重积 分 \( \displaystyle\iint\limits_{D} x^{2} \m…
Published 10/05/2024 (2021数3)设有界区域 \( D \) 是圆 \( x^{2}+y^{2}=1 \) 和直线 \( y=x \) 以及 \( x \) 轴在第一象限围成的部分, 计算二重 积分 \( \displaystyle\iint\limits_{D} \mathrm{e}^{(x+y)^{2}}\lef…
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