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等差数列的函数性质，高考必会的小技巧
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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://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=202504251141002EA15DB6436B3E8FEF7E&requestFrom=704&version_code=80402&x-expires=1777088461&x-signature=1kr4VqR6rcgMrUgcn1ontiPE3hw%3D)
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