打开App
【导数】2014全国I卷理科第21题 一分为二 最值法
图解2014全国I卷理科第21题——比较大小—— 一分为二，各个击破,最值法
02导数典例剖析48/104
App11:51
App11:58
App09:02
App03:08
App07:48![[导数]构造 反证递进论证](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/c03b175df726401cae974bac923ef978~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=crUNK75HldIPohSmaA7yK2QF4Kc%3D)
App05:32![[导数]换元 同构证明不等式](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/c68499cd93214afabd2b2ffe3aa3fb87~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=5kDrNicmp3CYexXW1ooBZN2vtsU%3D)
App03:35
App06:41![[导数]一值定乾坤 ?巧合 ? 欢迎留言](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/974fa81e96c44df2a17ccccb0ffdac81~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=nEcfl5Asc2LI9BNEXVPI34DDKi8%3D)
App02:05
App07:01![[导数]先取特殊值再证明一般情况](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/3e86d42c3f6f4af0934f4cd0bd57bb0c~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=%2FhCvA59h5%2BrMWCRDOoCHvDitPAY%3D)
App06:05
App05:27![[导数]同构分离求参数范围](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/c063ab34b12d4dff9cb7d6e88d1b1128~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=T99dyr%2FeYsOalfdLOBBI6iLAbmk%3D)
App05:03
App04:40
App04:59
App04:52![[导数]分开讨论单调性分离求最值定参数](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/658b1694b9c54524887eca6fa0666c6a~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=y03wC4ehvX24WbXTA9RnCbDPCNo%3D)
App04:53![[导数]极值点问题转化为函数零点问题](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/5be2a5cfa6544ff88dce06dfdc4157e7~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=NCYhU7w5CixcTBYj78NgtQSNd%2BU%3D)
App02:54
App05:23
App05:16
App02:38![[导数]全分离虚设零点求参数最大整数值](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/a1dfb6a3ee534e44bb0b8e5d4cf4a119~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=IaB5eOmzlfs4piqOp%2FPV1wbHlOE%3D)
App05:26![[导数]四种情况12个图x=1是分类讨论的界点](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/08af9ffa2a02422a8363b453dd3aa8ff~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=RIt4nxuYbVuRMVOuRV8YMzKpHrw%3D)
App07:00![[导数]分类讨论统一对数式一种情况一个图求参数范围](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/e4020ca7761b4265ba9da40675ad82ea~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=kcTmbKjvcgXUY%2Bo7fcrXSHVK5Z8%3D)
App06:01
App09:35![[导数]极值点化为零点方程的解化为函数图象交点求参数范围](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/aabf3af2e4774b318f7dd35d33b08b85~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=20250306194005E8EF04F2288713F438F5&requestFrom=704&version_code=80402&x-expires=1772797206&x-signature=Amn1PuIdssj%2BmGiRuxSEVCBAF7s%3D)
App04:35
App06:42
App07:25
App03:56
App05:18
App03:39
