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[高中数学]2020天津高考数学导函数大题-比值换元，巧用放缩
高中数学合集17/59
![[高中数学＆自主招生]教材上删掉的均值不等式究竟多好用？](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/da818779660c464482402ca4dbb87b87~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=202501280643370D6128C211FBD0B1FBA7&requestFrom=704&version_code=80402&x-expires=1769553818&x-signature=vG6ZHNMEOrH%2FxBFMFYvkGEsxjvk%3D)
App09:27![[高中数学]2020天津高考数学导函数大题-比值换元，巧用放缩](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/d46ece0739b94f80a437a6baaaa679db~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=202501280643370D6128C211FBD0B1FBA7&requestFrom=704&version_code=80402&x-expires=1769553818&x-signature=cxWnmq6jmN8nfzkqMBh%2Bnnt7BIg%3D)
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App08:58![[高中数学]二次函数实根分布的这道题目，你会做吗？](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/71d2f44775c1482e82595f3bb1a3dfda~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=202501280643370D6128C211FBD0B1FBA7&requestFrom=704&version_code=80402&x-expires=1769553818&x-signature=Umm5gW0CFTSwlqEFWR7BxNfE6EA%3D)
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App11:19![[高中数学]圆锥曲线中的四点共圆和圆幂定理，斜率之和为0？](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/1c946989ae604f34952e578927fc1b43~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=202501280643370D6128C211FBD0B1FBA7&requestFrom=704&version_code=80402&x-expires=1769553818&x-signature=m3qutXLhKRoO%2BCVszh2MKeZBdss%3D)
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