已知函数
,
,设方程
的3个实根分别为
,且
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b062ce6a5f0225a10c9018d4c3d334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ed61247c4e8fa8f238cff0c83f875b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47892fb1ec55d29e83387fe00aace29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
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22-23高二下·黑龙江大庆·期末 查看更多[4]
黑龙江省大庆实验中学实验三部2022-2023学年高二下学期期末考试数学试题(已下线)第10讲:导数期末题型突破(单调性、不等式、零点、恒成立)(已下线)高二下学期期末数学试卷(提高篇)-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第三册)福建省福州市闽侯县第一中学2023-2024学年高二下学期第二次月考(5月)数学试题
更新时间:2023-08-01 15:43:12
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【推荐1】已知函数
,当
时,不等式
的解集是______ ,若
恰有2个零点,则
的取值范围是______ .
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【推荐2】已知函数
,若存在实数
,使得方程
有6个不同实根
,
,
,
,
,
,且
,则
的取值范围是__________ ;
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdbeba55c12b8cd8cb8a76fa52081e44.png)
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名校
【推荐1】已知函数
,下列命题中:
①
在其定义域内有且仅有1个零点;
②
在其定义域内有且仅有1个极值点;
③
,使得
;
④
,
,使得
;
⑤当
时,函数
的图像总在函数
的图像的下方.
其中真命题有___________ .(写出所有真命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba28a28fd567c9331305ec91d04cf1ae.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c10f7cdfb1c47057e702ae15a60cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372e0890a16df97fc45675285f176033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf0c4df086f249d856fe6875ad6d890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2f24b4fa5308650a244d954f78f09b.png)
⑤当
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其中真命题有
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【推荐2】对于定义域为
的函数
,若满足①
;②当
,且
时,都有
;③当
,且
时,
,则称
为“偏对称函数”.现给出四个函数:
①
; ②
;
③
; ④
.
则其中是“偏对称函数”的函数为__________ .
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①
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③
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则其中是“偏对称函数”的函数为
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