解题方法
1 . 已知椭圆
的中心为坐标原点,对称轴为x轴、y轴,且过
,
两点.
(1)求椭圆
的方程;
(2)设过点
的直线交椭圆于C,D两点,过D作平行于y轴的直线与直线AB交于点M,与直线AC交于点N.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6cb47267894507bb292fdadcf5baae.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bcc512ec11bf8f6e0f42977dec712c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a5fe22839a1aea87f3656332b794e3.png)
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名校
解题方法
2 . 已知椭圆
的两个焦点与短轴的一个端点是直角三角形的三个顶点,且椭圆E过
,直线
与椭圆E交于A、B.
(2)设直线TA、TB的斜率分别为
,
,证明:
;
(3)直线
是过点T的椭圆E的切线,且与直线l交于点P,定义
为椭圆E的弦切角,
为弦TB对应的椭圆周角,探究椭圆E的弦切角
与弦TB对应的椭圆周角
的关系,并证明你的论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceadd21e8eb0f48c059a5947f5698378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
(2)设直线TA、TB的斜率分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d200a411fbc2f50ad72f1fd729a7d7.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3420d80e47fa081b34bbb6b9bfdae11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f989b4038205ef6d1294c3932a705a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3420d80e47fa081b34bbb6b9bfdae11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770f21bd323a9697e8bdeccab021a877.png)
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5卷引用:宁夏银川市2023届高三教学质量检测数学(理)试题
名校
3 . 已知函数
.
(1)讨论
的单调性;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a3cc7d844ea35e1c080c0b73a4988b.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58427d5aa7deeca47c8789241913f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
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2023-02-22更新
|
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11卷引用:宁夏青铜峡市宁朔中学2022-2023学年高二下学期3月月考数学(理)试题
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名校
4 . 已知
为自然对数的底数
.
(1)讨论函数
的单调性;
(2)若函数
有两个不同零点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47977cf081be634dabb9f922cd8700fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f50750782cfc3d4fbe990473027516f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
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2022-10-14更新
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宁夏石嘴山市第一中学2023届高三第三次月考数学(理)试题湖北省部分重点中学2022-2023学年高三上学期10月联考数学试题广东省深圳市第七高级中学2023届高三上学期10月月考数学试题(已下线)专题3-7 利用导函数研究双变量问题-1江西省赣州市七校2023届高三上学期期中联考数学(理)试题(已下线)拓展七:导数双变量问题的7种考法总结-【帮课堂】2022-2023学年高二数学同步精品讲义(人教A版2019选择性必修第二册)河南三门峡卢氏县实验高级中学2022-2023学年高三下学期第二次月考数学试题
名校
5 . 已知函数
(
)
(1)当
时,
有两个实根,求
取值范围;
(2)若方程
有两个实根
,且
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead0f1e5fcfb28067d524d6306f97792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49c4e2e12d7675817aa35c2fabebbcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb97b275b44933e4c6698bb1b873781.png)
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6 . 已知抛物线
经过点
.
(1)求抛物线
的方程;
(2)动直线
与抛物线
交于不同的两点
,
,
是抛物线上异于
,
的一点,记
,
的斜率分别为
,
,
为非零的常数.
从下面①②③中选取两个作为条件,证明另外一个成立:
①
点坐标为
;②
;③直线
经过点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/dad2a36927223bd70f426ba06aea4b45.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
从下面①②③中选取两个作为条件,证明另外一个成立:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ca6a90ebd1486668a78b938e003e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c04c1b0a7ba45962889b559b20d484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6ce0e134669fcdf7329c01eae9096.png)
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5卷引用:宁夏中卫市2023届高三一模数学(文)试题
宁夏中卫市2023届高三一模数学(文)试题江苏省南通市海门区2022-2023学年高三上学期期末数学试题(已下线)模块三 专题12 抛物线 B能力卷(已下线)模块三 专题15 抛物线 B能力卷(已下线)技巧04 结构不良问题解题策略(5大题型)(练习)
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解题方法
7 . 已知椭圆
:
的左、右焦点分别为
,
,长轴长为4,A,B是
上关于原点对称的两个动点,当
垂直于x轴时,
的周长为
.
(1)求
的方程;
(2)已知
的离心率
,直线
与
交于点M(异于点A),直线
与
交于点N(异于点B),证明:直线MN过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e19960ba707a6b1d55460c6a5855dd3.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/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce448aff0208b52d0e8688ac590d221.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8433146cfb355bc3c49d35cb488868b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
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8 . 已知
是定义在
上的函数,若对任意的
,
,均有
,则称
是
关联.
(1)判断和证明
是否是
关联?是否是
关联?
(2)若
是
关联,当
时,
,解不等式
;
(3)证明:“
是
关联,且是
关联”的充要条件是“
是
关联”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b404c0dce984a48ea2797d98a341ecef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac47c07f311512825947a454ffc3648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69530f171615d0d6a6fc9dfb8d455efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)判断和证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d01cb00904ee16178c7c35d7e0a8d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209c8ec11cab5361185e5e51e5e69be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8065c840ec2313396be36ed5c72c7c95.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446f653af671bafe76711759295bd6e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a0f0ee999bab322b1f5290fc8571cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0461333c6772ef427932fe243c504dca.png)
(3)证明:“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6170ed4a10e57487d525e71610dff82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209c8ec11cab5361185e5e51e5e69be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a89be1009f96de083175f681f6ae1d.png)
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名校
9 . 已知函数
,
.
(1)比较
与
的大小;
(2)设方程
有两个实根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6165422079714d726fc5e81632c4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd15c3876221988032ae37fc79a2e3c2.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)设方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2aabc96b7433bba077ceac76d8f0d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e6c90e91a4e6316e1a111719c16e8e.png)
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2022-05-11更新
|
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|
4卷引用:宁夏石嘴山市第一中学2022届高三下学期第三次模拟数学(理)考试题
名校
10 . 已知函数
(
,e为自然对数的底数).
(1)若
在x=0处的切线与直线y=ax垂直,求a的值;
(2)讨论函数
的单调性;
(3)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c7d502016162b581464297f7444d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324c5822114cf4bf2063fb2ddaa27e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f8ae199db6fb88d06f9b40c4937f71.png)
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2022-04-08更新
|
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|
6卷引用:宁夏平罗中学2022届高三下学期第三次模拟数学(理)试题