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[高等数学习题]如何判定两个函数相等? 从三要素入手研究这类问题
[高等数学学习系列] 如何判定两个函数相等? 我们知道函数有三要素: 对应法则, 定义域, 值域. 我们需要比较的是函数 f(x) 和 g(x) 化简后的对应法则也就是表达式是否相同, 以及化简前的定义域是否相同. 二者必须都相同, 才是相同函数.一前一后缺一不可. 这里要求大家对基本初等函数的基本性质和常用公式要比较熟悉. 我们频道中有相关知识的介绍视频, 欢迎大家前往观看.
高等数学(上)习题集7/264
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App23:55![[高等数学习题]如何判定两个函数相等? 从三要素入手研究这类问题](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/8449e0b64d2a42fba250b64a14430646~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202503131402263E9BB94C7A3DFD351C01&requestFrom=704&version_code=80402&x-expires=1773381747&x-signature=BbR1GYiBXX%2FMAkRIamPVaxrq7n8%3D)
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App09:44![[高等数学习题]如何求三角函数相关的0/0型极限问题? 重要极限](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/49276d76290542cabdd79ea0b817eae8~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202503131402263E9BB94C7A3DFD351C01&requestFrom=704&version_code=80402&x-expires=1773381747&x-signature=1wTkLVZToSOemUE2psCF0Nfvt9Y%3D)
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App04:08![[高等数学习题]幂指函数的极限怎么求? 极限类型的判定|重要极限](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/93e41b8a934e41899b5676846826c60c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202503131402263E9BB94C7A3DFD351C01&requestFrom=704&version_code=80402&x-expires=1773381747&x-signature=%2BoQutnrKTKS6PoSIl%2FkkoiWItEo%3D)
App05:50![[高等数学习题] 幂指函数 | 1^{\infty} 型极限怎么求?](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/1ba3fd06962b4ad3a1ce05f6fa5b5615~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202503131402263E9BB94C7A3DFD351C01&requestFrom=704&version_code=80402&x-expires=1773381747&x-signature=kydGfNy%2FOu5Y3MvMBbqvNloCe50%3D)
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