两道同济高等数学教材上的不定积分难题解析

{"ops":[{"insert":"书课后答案只有答案无解析\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/4f10bb2c15ad6a7e09347666c2878a63c6f0d9cb.jpg","width":1080,"height":2388,"size":1573439,"status":"loaded"}}},{"insert":"这是第二十八题 经典的分部积分积分相互消问题\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/011aab22eabe78ca202a82955327d5a182944e2c.jpg","width":1500,"height":2000,"size":1859740,"status":"loaded"}}},{"insert":"我们这里附赠第二种解法 原理就是假设原函数待定系数法\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/1d09eef61d3906fa712ee67e5fff5077868dcd4b.jpg","width":1500,"height":2000,"size":1753574,"status":"loaded"}}},{"insert":"再看第三十三题反双曲函数平方的不定积分\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/f7bf08d2d4736c486473a37e060bd5f1c3623e5b.jpg","width":1080,"height":2388,"size":1524822,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/75d779453e48e2d1d9fb793bc9e0723c7d2fbcf9.jpg","width":1500,"height":2000,"size":1855156,"status":"loaded"}}},{"insert":"倒代换技巧 注意 被积分的函数分母比分子次数高很多时候考虑倒代换\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/88885dca32e3e0448a83fe7e61500b760ed30c11.jpg","width":1500,"height":2000,"size":2002520,"status":"loaded"}}},{"insert":"\n"}]}