解题方法
1 . 若关于
的不等式
在
上恒成立,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c9f01540e08d275d85e61bad26b362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 已知抛物线
的焦点
关于直线
的对称点为
.
(1)求
的方程;
(2)若
为坐标原点,过焦点
且斜率为1的直线
交
于
两点,求
;
(3)过点
的动直线
交
于不同的
两点,
为线段
上一点,且满足
,证明:点
在某定直线上,并求出该定直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd24f3c4bc9f9a75d4b28630bb630d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18dcc62ada52231d06bb963d00fadc7f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2401bc9c26cc3b0b8384c7139bd58fff.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e16d5139682dad62baa20ab740787c.png)
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabe95fc577b9a3f6a715277f12f62a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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解题方法
3 . 已知椭圆
:
的左、右焦点分别为
、
,离心率为
,经过点
且倾斜角为
的直线
与椭圆交于
、
两点(其中点
在
轴上方),
的周长为8.
的标准方程;
(2)如图,将平面
沿
轴折叠,使
轴正半轴和
轴所确定的半平面(平面
)与
轴负半轴和
轴所确定的半平面(平面
)互相垂直.
(i)若
,求异面直线
和
所成角的余弦值;
(ii)是否存在
,使得
折叠后的周长与折叠前的周长之比为
?若存在,求
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b00a6c2fb73c74c3ae201357e295a4f4.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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f727d47ac94c374adb4fc3131dcca1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,将平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0530e3288e75edc196427ebc1448f201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16498e054295750f17b6fb4c05f66b84.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e186ebc624ebacde9a03b96289f1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
(ii)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f727d47ac94c374adb4fc3131dcca1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb10f418620f7be1f8c7e94fb0b7a0fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc24d605ad707ad0e76059d8a31f50d3.png)
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2024-06-10更新
|
799次组卷
|
4卷引用:广东省惠州市2024届高三下学期模拟考试(一模)数学试题
广东省惠州市2024届高三下学期模拟考试(一模)数学试题(已下线)大招2 空间几何体中空间角的速破策略(已下线)广东省阳江市2024届高三下学期5月模拟数学试题重庆市开州中学2023-2024学年高三下学期高考模拟考试数学试题(四)
名校
解题方法
4 . 已知数列
的前
项和为
,若数列
满足:①数列
项数有限为
;②
;③
,则称数列
为“
阶可控摇摆数列”.
(1)若
,请判断数列
是否为“
阶可控摇摆数列”?若是,请求出
的值;若不是,请说明理由;
(2)若等比数列
为“10阶可控摇摆数列”,求
的通项公式;
(3)若等差数列
为“
阶可控摇摆数列”,且
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4ed75729a7f7a2d5a3d9f7293c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781342df475217b47b622044a112f1d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353cc14af0e73b3ef2fb65ad1ec07d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)若等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/917e9c3724f02de6ffd0ed8252ab2166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)若等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84f10b80ce3402ac5369e6a1465d9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad491e5b5e14c49ef8b7004ebcfcef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa22ba45c62adc96ffe508594edd6900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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5 . 若关于
的不等式
的解集为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cad7dfbef17526340703455faf026a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5239e374894f95da60c5cb35a2a718.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
6 . 已知抛物线
,过焦点F的直线交抛物线于
两点,且
.
(1)求抛物线
的方程;
(2)若线段
交
轴于
两点,判断
是否是定值,若是,求出该值,否则说明理由.
(3)若直线
交抛物线于
两点,
,是否存在整数
,使得
的重心恰在抛物线上.若存在,求出满足条件的所有
的值,否则说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1b2185acc13e557f1b9fa4bafad92e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b86a5e58e4de6fb1ec720ed4406b7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08e355e93ed3669887c0c93a4f1158c.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adaf2a29ffe39a22be97d9ee4c0a09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28195c7eefbcb25ffa1a2b661385cdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383ab33ac888a652eb33ede5106e12c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317d7ac04c9cf58ee1503f1a1bf9e3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb62b837ec6411dc72fc03e9e1fed11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 已知
.
(1)当
时,求
的单调区间;
(2)若
有两个极值点
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59fe47b8d4bb6a91c1313a5e1f18c30.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71c899383cfca8cde9cc07eba832899.png)
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2024-04-26更新
|
2058次组卷
|
5卷引用:广东省惠州市实验中学2023-2024学年高二下学期5月期中考试数学试题
名校
解题方法
8 . 已知
是椭圆
的右焦点,点
在椭圆上,
,且
,则椭圆的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54363e4039d93ec0f67d011897a1f54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a528a470ed0302853ec5cb0e3fbf854.png)
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9 . 设函数
.
(1)当
时,求
的极值;
(2)当
时,讨论
的单调性;
(3)在(1)条件下,若对任意
,有
恒成立,求m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc037a7e332049e25721554ad2758cd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)在(1)条件下,若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfd71dff59b3659fefb9818d6609c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b569ce65d8ed9391897ce5231f87329a.png)
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2024-04-13更新
|
268次组卷
|
2卷引用:广东省惠州市第一中学2023-2024学年高二下学期第一次阶段考试(4月)数学试题
名校
解题方法
10 . 依次抛掷一枚质地均匀的骰子两次,
表示事件“第一次抛掷骰子的点数为2”,
表示事件“第一次抛掷骰子的点数为奇数”,
表示事件“两次抛掷骰子的点数之和为6”,
表示事件“两次抛掷骰子的点数之和为7”,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e57c789cfd4b0be7dbf63aa99435656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c454eeaf119c8a0fc328eb64ff2dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-04-13更新
|
1253次组卷
|
8卷引用:广东省惠州市第一中学2023-2024学年高二下学期第一次阶段考试(4月)数学试题
广东省惠州市第一中学2023-2024学年高二下学期第一次阶段考试(4月)数学试题(已下线)10.2?事件的相互独立性——课后作业(巩固版)(已下线)第02讲 事件的相互独立性-《知识解读·题型专练》(人教A版2019必修第二册)(已下线)专题10.8 概率全章综合测试卷(提高篇)-举一反三系列(人教A版2019必修第二册)(已下线)专题06 第十章 概率-期末考点大串讲(人教A版2019必修第二册)(已下线)专题11 概率归类(1) -期末考点大串讲(苏教版(2019))(已下线)高一第二学期期末模拟卷01-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)【高一模块一】难度3 小题强化限时晋级练(基础3)