1 . 已知偶函数
的图象关于直线
对称,
,且对任意
,均有
成立,若
对任意
恒成立,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e181cdd42105f02e1a4446054ae65d34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d054000d767be53c397efdbcc44d6a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30476985fae92df7a28dc82989b42bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc44ed24250cd04a4792ba8c231adfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6724c68c4206bd95683998d800f7f676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-03-06更新
|
462次组卷
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2卷引用:宁夏银川一中、云南昆明一中2024届高三下学期3月联合考试(一模)文科数学试卷
名校
2 . 在
中,
,
,点D与点B分别在直线AC的两侧,且
,
,则BD的长度的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e20c1b7f55cd8e68a7c3aa58bc944c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1371fe98a65d8ebd840c8d98346b6d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c219d82e5a081750b88cfd913f01b667.png)
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2024-03-03更新
|
1510次组卷
|
8卷引用:宁夏银川一中、昆明一中2024届高三下学期3月联合考试(一模)理科数学试卷
宁夏银川一中、昆明一中2024届高三下学期3月联合考试(一模)理科数学试卷(已下线)第六章 本章综合--方法提升应用【第三练】“上好三节课,做好三套题“高中数学素养晋级之路福建省部分优质高中2023-2024学年高一下学期第一次阶段性检测数学试卷福建省莆田第四中学2023-2024学年高一下学期第一次月考数学试卷2024届河北省邢台市部分高中二模数学试题江苏省扬州市树人学校2023-2024学年高一下学期期中调研数学试卷河北省衡水中学2023-2024学年高三下学期期中自我提升测试数学试题(已下线)【高一模块一】难度10 小题强化限时晋级练(困难1)
名校
解题方法
3 . 设函数
.
(1)讨论
的单调性;
(2)证明:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19918216dccbc84a439e750f76916bb.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12d0bd9afdd4e53ff37f5bfcaa1106c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481adcf2f35f31e5e661b2541c0f44b5.png)
您最近一年使用:0次
名校
4 . 已知函数
.
(1)求
在
处的切线方程;
(2)若
对任意
恒成立,求正实数
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4779ce7a8c7f926d6ff221cddb0f9b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f625505c7215e99cdd34275dda0fc12.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d355a7749dd628184dc05fad0e6f26f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aedc1c8a16e306bcd6e5154f9ed6dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-02-27更新
|
595次组卷
|
2卷引用:宁夏回族自治区石嘴山市第三中学2024届高三第一次模拟考试数学(理)试题
解题方法
5 . 如图,在长方体
中,
为
的中点,
分别是直线
上的动点,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/10/6d7404b5-9864-4670-91d7-01c704fa17da.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25d9b4caaaa4713f730eaec17a4929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d13ee1e498c7a7c3acac81075de3df2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/10/6d7404b5-9864-4670-91d7-01c704fa17da.png?resizew=163)
A.三棱锥![]() |
B.![]() |
C.直线![]() ![]() |
D.![]() ![]() |
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6 . 已知焦点在
轴上,中心在原点,离心率为
的椭圆经过点
.
(1)求椭圆
的方程;
(2)若动点
,
(不与定点
重合)均在椭圆上,且直线
与
的斜率之和为1,
为坐标原点
(ⅰ)求证:直线
经过定点;
(ⅱ)求
的面积
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97caea8ea20c118920d887d2ee9ac83d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(ⅰ)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
7 . 设等差数列
的前
项和为
.在同一个坐标系中,
及
的部分图象如图所示,则下列说法不正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/18cfc086-8744-4234-a720-22648939c0ab.png?resizew=298)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a8e45e81b090fbef1273dc0f30ba23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6046f87bf2ee8a77f370e9de765940a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/18cfc086-8744-4234-a720-22648939c0ab.png?resizew=298)
A.当![]() ![]() | B.当![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
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名校
8 . 将函数
图象所有点的横坐标变为原来的
,纵坐标不变,得到函数
的图象. 若对于任意
,总存在唯一的
. 使得
,则
的取值范围为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6492913b7f39da2f6a86142d6ca22c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7af9f22a562e413ebece93c339c54fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef85b287d0fc9611ac7ba4bade11d864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57045228fec057c04c8a9a3423ee9d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065d73e053473a6e92bdef5c0af7f794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2024-02-06更新
|
757次组卷
|
4卷引用:宁夏回族自治区银川一中2024届高三第三次模拟考试理科数学试题
宁夏回族自治区银川一中2024届高三第三次模拟考试理科数学试题福建省泉州市2023-2024学年高一上学期1月期末教学质量监测数学试题(已下线)1.6 函数y=Asin (ωx+φ)的性质与图象4种常见考法归类(2)-【帮课堂】(北师大版2019必修第二册)江西省九江市同文中学2023-2024学年高一下学期阶段Ⅱ考试(5月)数学试题
解题方法
9 . 已知椭圆
,F为右焦点,A为右顶点,B为上顶点,
.
(1)求C的离心率e;
(2)已知MN为C的一条过原点的弦(M,N不同于点A).
(ⅰ)求证:直线AM,AN的斜率之积为定值,并求出该值;
(ⅱ)若直线AM,AN与y轴分别交于点D,E,且△ADE面积的最小值为
,求椭圆C的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93e065b3576b3cd585c5fe8410ebfe4.png)
(1)求C的离心率e;
(2)已知MN为C的一条过原点的弦(M,N不同于点A).
(ⅰ)求证:直线AM,AN的斜率之积为定值,并求出该值;
(ⅱ)若直线AM,AN与y轴分别交于点D,E,且△ADE面积的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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2024-01-25更新
|
82次组卷
|
2卷引用:宁夏银川市永宁上游高级中学2023-2024学年高二下学期开学考试数学试题
名校
10 . 已知函数
的图象过点
.
(1)若关于
的方程
在
有实根,求实数
的取值范围;
(2)若函数
,则是否存在实数
,对任意的
,存在
,使
成立?若存在,求出
的取值范围,若不存在,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adbc26cc02bf54c422738fba4bc4483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613572edb9e8c1e60f609a19e27362ea.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b4874cf36b6082ba4d539ff3ee69a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ec9c83a66e586d3601b1f1440ebb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4474bd96f620ebf3759b36cb6a1251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c7f93185d5e8863c8977d3aafe9c7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f64b6734d1f62550d9864c0ba7f1c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c96d62bb7eb9d3a4738717a9005d261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
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