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[高数131] 少见的换元方式|将难处理的函数看成一个整体
高等数学习题讲解 第131题 根据被积函数的特点, 将难处理的函数看成一个整体进行换元. 然后利用分部积分法进行求解, 再利用三角恒等变换将问题简化为易于求解的形式.
高等数学(上)习题集113/264
![[高数130]利用三角恒等式进行适当变换后分部积分求解](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/15ccd9c78b084386863964c1240e09cc~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20241106105330252BE4C5EFBE82626A09&requestFrom=704&version_code=80402&x-expires=1762397611&x-signature=uS9Xy7IYScPFmd3Kb8v7g40UNwQ%3D)
App02:16![[高数131] 少见的换元方式|将难处理的函数看成一个整体](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/b39d02ebb23b4465b39a0a80f8ac32d7~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20241106105330252BE4C5EFBE82626A09&requestFrom=704&version_code=80402&x-expires=1762397611&x-signature=%2B6R2F3T2Prsai6RTlOwC%2B6aqaI8%3D)
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