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25分钟学会等差数列，学废了吗？
高二同步课14/48
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App22:10![导数分析函数的极值与最值[导数5]](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/8d628d4a64ce414db50698ae30db97de~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=20240630095701B59DA9A5C847B9310CA0&requestFrom=704&version_code=80402&x-expires=1751248622&x-signature=6sq0Vot%2BUcuf4mfOdwujsTIzVFo%3D)
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App23:45![[高考数学]看导数猜原函数，构造函数解不等式](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/9559157038c549229efb89e9d282d8c4~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=20240630095701B59DA9A5C847B9310CA0&requestFrom=704&version_code=80402&x-expires=1751248622&x-signature=rxkj7cZ74KaeiMcrgHGy1VON33g%3D)
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