名校
解题方法
1 . 在平面直角坐标系
中,双曲线
的左焦点为F,A,B分别为双曲线C左右支上一点,直线AF的斜率为
,若四边形OFAB是平行四边形,则双曲线C的离心率为( )
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718551924015104/2719705437700096/STEM/a3cf76d9-2092-4dc4-b575-d8cdf919c40d.png?resizew=210)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718551924015104/2719705437700096/STEM/a3cf76d9-2092-4dc4-b575-d8cdf919c40d.png?resizew=210)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:江西省九江市2021届高三三模数学(文)试题
名校
解题方法
2 . 在平面直角坐标系
中,已知双曲线
:
的左焦点为
,
,
分别为双曲线
左右支上一点,若四边形
是菱形,则双曲线
的离心率为( )
![](https://img.xkw.com/dksih/QBM/2021/5/10/2718243723403264/2719442358566912/STEM/cec27ba8-66fd-4b6c-aba9-88504376074a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c92a2714ebd92248c3e200797abe17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2021/5/10/2718243723403264/2719442358566912/STEM/cec27ba8-66fd-4b6c-aba9-88504376074a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:江西省九江市2021届高三三模数学(理)试题
3 . 已知函数
.
(Ⅰ)当
时,求
的单调区间;
(Ⅱ)讨论
在
内零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dd3487cb72d8e7b55265e6229c57db.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
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2卷引用:江西省九江市2021届高三三模数学(理)试题
解题方法
4 . 已知椭圆
的焦点分别为
、
,
,若椭圆
上存在点
,使得
,则椭圆
短轴长的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2644e9f73e5871db934fdafc431d675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aadd215910c36d7919fedff8f00f4b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5卷引用:江西省九江市2021届高三三模数学(理)试题
江西省九江市2021届高三三模数学(理)试题江西省九江市2021届高三三模数学(文)试题重庆市酉阳土家族苗族自治县第三中学校2021届高三数学考前猜题卷试题(已下线)专题5.3 解析几何中的范围问题-玩转压轴题,进军满分之2021高考数学选择题填空题黑龙江省大兴安岭地区呼玛县高级中学2022届高三上学期期末数学(文)试题
名校
5 . 已知函数
,
.
(1)设
,求
的极值;
(2)若函数
有两个极值点
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb70ce035c53f233cb56002fecea68cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f9b525356d1ab2a97df55357e0960d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b916df8bdd03ba4a31c0b8470d13436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51e8ba76aeaf33001fdcc990ba8bad4.png)
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7卷引用:江西省九江市柴桑区第一中学2022届高三上学期第二次月考数学(理)试题
江西省九江市柴桑区第一中学2022届高三上学期第二次月考数学(理)试题宁夏银川市2021届高三二模数学(理)试题吉林省延边第二中学2020-2021学年高二下学期期末考试数学(理)试题福建省漳州第一中学2022届高三上学期第四次阶段性考试数学试题(已下线)一轮大题专练17—导数(最值问题)-2022届高三数学一轮复习(已下线)专题4.11—导数大题(双变量与极值点偏移问题3)-2022届高三数学一轮复习精讲精练重庆市永川北山中学校2022届高三高考仿真数学试题
名校
6 . 已知双曲线
右顶点为
,以
为圆心,
为半径作圆
,圆
与双曲线
的一条渐近线交于
,
两点,若
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3181e58f09e9fec4e43e422b82831b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.2 | B.![]() | C.![]() | D.![]() |
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6卷引用:江西省九江第一中学2021届高三5月适应性考试数学(文)试题
名校
解题方法
7 . 拋物线
,过抛物线的焦点且倾斜角为
的直线交抛物线于
、
两点,以
为直径的圆与
轴交于
、
两点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556aee83cde95f47887d2bfc7bebcb0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 若不等式
恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1a11b9e5798e69fdd1b8532eba31a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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江西省九江市2021届高三高考数学(理)二模试题全国Ⅱ卷决胜高考2021届高三数学(理)仿真卷试题(一)安徽省六安市第一中学2021届高三下学期适应性考试理科数学试题宁夏银川市景博中学2022届高三上学期期中考试数学(理)试题(已下线)第16讲 指对混合问题-2022年新高考数学二轮专题突破精练(已下线)押全国卷(理科)第6,8,12题 函数与导函数-备战2022年高考数学(理)临考题号押题(全国卷)
名校
9 . 已知函数
,
.
(1)当
时,求证:
在
上单调递增;
(2)当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70b0b42779ca804513f352ab138288e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df9a0f84ce307fcf04ea850aabb2c5b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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江西省九江市2021届高考一模数学(理)试题(已下线)一轮大题专练1—导数(恒成立问题1))-2022届高三数学一轮复习(已下线)专题4.6—导数大题(恒成立问题3)-2022届高三数学一轮复习精讲精练江苏省徐州市第七中学2022-2023学年高三上学期10月学情调研数学试题
名校
10 . 若对任意
,不等式
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd08192c30a91cb53695648812eb886b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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江西省九江市2021届高三高考二模数学(文)试题宁夏回族自治区石嘴山市第一中学2020-2021学年高二下学期第二次月考数学(理)试题广东省佛山市顺德区第一中学2023届高三上学期9月月考数学试题(已下线)专题16 函数与导数常见经典压轴小题全归类(精讲精练)-2(已下线)专题16 利用导数研究方程与不等式