打开App
360P
利用导数求切线，待定切点法
高二同步课31/51
App24:14
App23:45![[高考数学]看导数猜原函数，构造函数解不等式](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/9559157038c549229efb89e9d282d8c4~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=202412200404040E609338504957495123&requestFrom=704&version_code=80402&x-expires=1766174645&x-signature=Gcl6q6C1fixqwOr2FemhnAiWEzY%3D)
App21:21
App14:14
App19:58
App24:39
App12:13
App11:58
App07:41
App18:18
App19:59
App11:26
App16:43
App09:20
App21:04
App38:45
App13:51
App14:03
App15:39
App06:47
App17:39![听说圆锥曲线把你难住了[高二期中]](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/oIRBfAsVAqAQpA9nEMCFEPYLICXfTAhZKgDhAl~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=202412200404040E609338504957495123&requestFrom=704&version_code=80402&x-expires=1766174645&x-signature=Ebnly%2BPzXHpG09LNKz77QT%2BqIQk%3D)
App15:16打开App观看
