2024年高等数学课件-第十七次课 20环境工程1环境科学1、2班113(124)人

第十七次课 20环境工程1环境科学1、2班113（124）人 ①第一换元法积分基本原理（凑微分法积分） ②第一换元法积分举例 ------------------------------++-

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4

、

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17、

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18、19、

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20、

?(a?0).