名校
解题方法
1 . 已知函数
.
(1)当
时,求
的最值;
(2)当
时,关于
的不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b28b21dbae9edb360ea96c1edb96e6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691c1fc50ea793ea08748cb75bae70e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e74fc7479e44217bfa27dbd75992b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf755154fdddb396e7ed1a2352f1911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 我国许多地方都有风格迥异的古塔.现在在某塔底共线三点
处分别测得塔顶P点的仰角为
,
,
,且
,设该塔高为
,示意图如图,则该塔高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5516a7ad03e49c26d9a6303365664fb.png)
________ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de303eb9ff8ccfc0b6ebdf8380456fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5516a7ad03e49c26d9a6303365664fb.png)
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名校
解题方法
3 . 已知函数
是自然对数的底数.
(1)若
,证明:
;
(2)若关于
的方程
有两个不相等的实根,求
的取值范围;
(3)若
为整数,且当
时,不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d6b43fc556c4b205abba37fc4a0dc9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5967cc62862986840af4dd29df4bcc41.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa757c82f454fe33f592264a7e4d08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04391464f10c513e23be28dc5eeff88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d347d5b8729ddc0417eb8eb0a13c7218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
4 . 函数
(其中
为自然常数).则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33427bd6641954f6e4deab695e815b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab625f9a61f620b0c59920729c52c37.png)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
5 . 对于数集
,其中
,
.定义向量集
.若对于任意
,存在
,使得
,则称
具有性质
.定义向量集
的子集
,若存在不相等的向量
,
,使得
,且
具有性质
,则称
为“向量伴随数集”.
(1)已知数集
,请你写出数集
对应的向量集
,并验证
是否具有性质
;
(2)已知数集
,请你写出数集
对应的向量集
,并验证
是否具有性质
;
(3)若
,且
具有性质
,写出
的值(不需要写出解析过程),并说明
是否为“向量伴随数集”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4622c700325a90d453e6300b886a8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0bc1a0bba5e6e8ddf6f1f60f78e6490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a06afe8164aec980706619a76d95a94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec1c65f144bd63ed516e001e57852de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f923fcc615e579b8dda937faa9fa40c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01243e3fb9bd7a7711a593f5395b06cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81b7fb5dd67b43f4f736b55b613bd9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d344174267f996c7cefecfd6985d380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f7c2c3542cb509aa5e6ebc25c3f760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31de844c7625d3b7de01abfcd0ea09fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
(1)已知数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf924cf5dacb13f5373cdda07934ded2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096b1ece1dcd29c59a46a4b3e02cb548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351bb3f3c54604330fa5b6c2bc3a7502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096b1ece1dcd29c59a46a4b3e02cb548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)已知数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cfe811d59fa7d0ae36515495bcc495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5031a3a951c4a1d1c5e9f80a5e26513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177b7f56650f15cdcabd287ee39554d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5031a3a951c4a1d1c5e9f80a5e26513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226930767b46a7d01130d711c4f63479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105ed89795469b32ec6b9a5e1ffe8233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bbb0a939ec3c2d0414c2351f93ae5f.png)
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名校
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb10f8ecb4ec7d3136bc662867968f2.png)
(1)若
求曲线
在点
处的切线方程.
(2)若
证明:
在
上单调递增.
(3)当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb10f8ecb4ec7d3136bc662867968f2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20439836def79ea69d967d95e81320a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87676cc3ca413d9ba64fab2cd45c909c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec994bb92d9945a4369f1215d859ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-05-08更新
|
374次组卷
|
4卷引用:甘肃省白银市2023-2024学年高二下学期5月期中考试数学试题
名校
7 . “圆幂定理”是平面几何中关于圆的一个重要定理,它包含三个结论,其中一个是相交弦定理:圆内的两条相交弦,被交点分成的两条线段长的积相等.如图,已知圆O的半径为2,点P是圆O内的定点,且
,弦AC,BD均过点P,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fa2c1e50403dd1cdd969d6308692eb.png)
A.![]() | B.![]() ![]() |
C.![]() | D.当![]() ![]() |
您最近一年使用:0次
2024-03-31更新
|
304次组卷
|
2卷引用:甘肃省兰州第一中学2023-2024学年高一下学期4月期中数学试题
名校
解题方法
8 . 已知函数
,
,若
成立,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8546925596d004281117d09dceccb0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad04099180bae0439a479c80adb31efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e2302295333e96f24e328bc4e1f9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-02-27更新
|
703次组卷
|
5卷引用:甘肃省兰州市第二中学2023-2024学年高二下学期期中考试数学试卷
名校
9 . 已知函数
及其导函数
的定义域均为
,且
,
的图象关于点
对称,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afae8a24472c2ad833ea7aa89cd35e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
A.![]() |
B.![]() |
C.![]() ![]() |
D.![]() |
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2024-02-23更新
|
1082次组卷
|
4卷引用:甘肃省兰州市第二中学2023-2024学年高二下学期期中考试数学试卷
名校
解题方法
10 . 有关圆
与圆
的下列哪些结论是正确的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd3cffcca7f4d0912701679a6ad5b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e34b5f4bb0cd0be5f103696ef1c7793.png)
A.圆![]() ![]() |
B.若![]() ![]() ![]() |
C.两圆外切 |
D.若![]() ![]() ![]() ![]() ![]() |
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2023-10-14更新
|
999次组卷
|
5卷引用:甘肃省武威市古浪县第五中学2023-2024学年高二上学期期中考试数学试卷
甘肃省武威市古浪县第五中学2023-2024学年高二上学期期中考试数学试卷宁夏回族自治区银川一中2023-2024学年高二上学期期中考试数学试题四川省雅安市天立教育集团2023-2024学年高二上学期期中数学试题江苏省淮安市涟水县第一中学2023-2024学年高二上学期第一次月考数学试题(已下线)难关必刷03圆的综合问题-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)