名校
解题方法
1 . 已知
为坐标原点,双曲线
和椭圆
均过点
且以
的两个顶点和
的两个焦点为顶点的四边形是面积为
的正方形.
(1)求
,
的方程;
(2)是否存在直线
,使得
与
交于
,
两点,与
只有一个公共点,且
?证明你的结论;
(3)椭圆
的右顶点为
,过椭圆
右焦点的直线
与
交于
、
两点,
关于
轴的对称点为
,直线
与
轴交于点
,
,
的面积分别为
,
,问
是否为定值?若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd89df0f194cffb5b440e8c7f983cb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a258893e87121fc82b385e9a0c149ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b5520d51d00cdf0d3adecc83faa62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f67c8e3d9a5e7713b6f5d6b0e8fbdb.png)
(3)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03c5e1e4e2669563b22dcf05bfb9b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467a7b2829ea7f2573865b43fd66d937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a9dabb53dc826019fc8b6ae6d940c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
2022-01-14更新
|
574次组卷
|
4卷引用:天津市耀华中学2021-2022学年高三上学期第三次月考数学试题
名校
解题方法
2 . 已知椭圆
的长轴长为4,离心率为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521e42b220eaac30bce6102bd8642104.png)
(1)求椭圆
的方程;
(2)设椭圆
的左焦点为F,右顶点为G,过点G的直线与y轴正半轴交于点S,与椭圆交于点H,且
轴,过点S的另一直线与椭圆交于M,N两点,若
,求直线MN的方程.
(3)圆锥曲线问题的关键一步是条件的翻译,所以请同学们不用解答,翻译下面的条件,转化为数学表达式:
①若直线
与双曲线
交于A、B两点,与其渐近线交于C、D两点,求证:AC=BD.
②椭圆的
左顶点为D,上顶点为B,点A的坐标为
,过点D的直线L与椭圆在第一象限交于点P,与直线AB交于点Q,设L的斜率为K,若
,求斜率K的值.
③椭圆的
左顶点为A,过点A作直线
与椭圆交于另一点B,若直线
交
轴于点C,且
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521e42b220eaac30bce6102bd8642104.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7397bd90109ca5ab71e864cf91d58e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4146f877dfe6ca64f603ba1740850195.png)
(3)圆锥曲线问题的关键一步是条件的翻译,所以请同学们不用解答,翻译下面的条件,转化为数学表达式:
①若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae96f5020aef5aef03ec7f406460f608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
②椭圆的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff32d26c8d44f5fb4813a19c1030a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8172214950a628918b4d51fc6b24697.png)
③椭圆的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ff26eeabfaef6e944082999e39e814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
3 . 2021年6月17日,神舟十二号载人飞船顺利升空并于6.5小时后与天和核心舱成功对接,这是中国航天史上的又一里程碑,我校南苍穹同学既是航天迷,又热爱数学,于是他为正在参加期末检测的你们编就了这道题目,如图,是神舟十二号飞船推进舱及其推进器的简化示意图,半径相等的圆
与圆柱
底面相切于
四点,且圆
与
与
与
与
分别外切,线段
为圆柱
的母线.点
为线段
中点,点
在线段
上,且
.已知圆柱
,底面半径为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/78e25f34-db50-45eb-82da-472097cfab1d.png?resizew=153)
![](https://img.xkw.com/dksih/QBM/2021/6/29/2753530368434176/2754982265675776/STEM/095b1cdbb79d4b85b5e8d416ecefceb9.png?resizew=257)
(1)求证:
平面
;
(2)线段
上是否存在一点
,使得
平面
若存在,请求出
的长,若不存在,请说明理由;
(3)求二面角
的余弦值;
(4)如图,是飞船推进舱与即将对接的天和核心舱的相对位置的简化示意图.天和核心舱为底面半径为2的圆柱
,它与飞船推进舱共轴,即
共线.核心舱体两侧伸展出太阳翼,其中三角形
为以
为斜边的等腰直角三角形,四边形
为矩形.已知推进舱与核心舱的距离为4,即
,且
,
.在对接过程中,核心舱相对于推进舱可能会相对作出逆时针旋转的运动,请你求出在舱体相对距离保持不变的情况下,在舱体相对旋转过程中,直线
与平面
所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedae9bc8fe49c3c98914f89a0670158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1ac49b4139636fb1809fe970b23a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46336351200396508fcc05fef6a26625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba671abb53449fe1012b8f5e017f5c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e430821d59f79d5aa0fc9934e240603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1ac49b4139636fb1809fe970b23a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf3e262887cd9bfad78cad43b979b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c4c2157cf374ebe6352715ef100471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47d2403519f528c80887ad7045b630c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b993fdfc49cb68be99ff1f04f71388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e980772d05dd94fafd77f69c20e6e882.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/78e25f34-db50-45eb-82da-472097cfab1d.png?resizew=153)
![](https://img.xkw.com/dksih/QBM/2021/6/29/2753530368434176/2754982265675776/STEM/095b1cdbb79d4b85b5e8d416ecefceb9.png?resizew=257)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac480d8d9d7821b62a603cf5cfda236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaf581b4f42a25087f7eee23a7d66b6.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de7ea432599108b34a0ccaa0f2c75e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b131bc54bb464a496e79ada0c6a7cabd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f3fd3258a508a38c7616464cfb86e4.png)
(4)如图,是飞船推进舱与即将对接的天和核心舱的相对位置的简化示意图.天和核心舱为底面半径为2的圆柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711953485a76de370a04756009a644a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeaf090a8dc4e381e3001c24473a0ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e046095eefc95b26511f64d1cb3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cce6cac0fdd4b1a434af8bcaec8fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134c3d2c318a33a82da4134dd17fa57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cbf49977b753e293bdf415fccd91abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23be45176cc25e19752dc551147b02eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d2a5b65d9119ddd8649164ecde37ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134c3d2c318a33a82da4134dd17fa57e.png)
您最近一年使用:0次
4 . 设a,b为实数,且
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c789a3ecfa69fa98124278ed6f02d250.png)
(1)求函数
的单调区间;
(2)若对任意
,函数
有两个不同的零点,求a的取值范围;
(3)当
时,证明:对任意
,函数
有两个不同的零点
,满足
.
(注:
是自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c789a3ecfa69fa98124278ed6f02d250.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0936fc66b771c38e13a0c412c7fbaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7393fc425948d4261bb6c7d67f88e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a04fa214f85859ac2d71aa8ee249925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36cfbef76111f50a3129026d0d4af5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e900a05090fd299fb96e92e01133b2.png)
(注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2beb22b735da7cb8054dd722450632f5.png)
您最近一年使用:0次
2021-06-09更新
|
16973次组卷
|
40卷引用:天津市耀华中学2021-2022学年高三上学期第二次月考数学试题
天津市耀华中学2021-2022学年高三上学期第二次月考数学试题天津市蓟州区第一中学2021届高三下学期模拟检测三数学试题2021年浙江省高考数学试题(已下线)一轮大题专练5—导数(零点个数问题1)-2022届高三数学一轮复习辽宁省盘锦市高级中学2021-2022学年高三上学期9月月考数学试题(已下线)专题03 导数及其应用-2021年高考真题和模拟题数学(理)专项汇编(全国通用)(已下线)专题03 导数及其应用-2021年高考真题和模拟题数学(文)分项汇编(全国通用)第五章一元函数的导数及其应用(B卷综合篇)-2021-2022学年高二数学同步单元AB卷 (人教A版2019选择性必修第一册+第二册,浙江专用)(已下线)专题15 《导数及其应用》中的高考真题训练-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) 天津市第四十七中学2022届高三下学期四月统练数学试题(已下线)考点08 函数与导数的综合运用-备战2022年高考数学(理)一轮复习考点微专题(已下线)考点11 导数的应用-备战2022年高考数学一轮复习考点帮(浙江专用)(已下线)专题12 导数-五年(2017-2021)高考数学真题分项(新高考地区专用)(已下线)专题03 导数及其应用-五年(2017-2021)高考数学真题分项汇编(文科+理科)(已下线)考点07 导数及其应用-备战2022年高考数学学霸纠错(新高考专用)(已下线)专题04 利用导数证明不等式(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)专题05 导数与函数的零点问题(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)第28讲 零点差问题-突破2022年新高考数学导数压轴解答题精选精练(已下线)热点04 导数及其应用-2022年高考数学【热点·重点·难点】专练(新高考专用)(已下线)专题14 导数综合应用的解题模板-学会解题之高三数学万能解题模板【2022版】(已下线)思想01 函数与方程思想(讲)--第三篇 思想方法篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)技巧03 解答题解法与技巧(讲)--第二篇 解题技巧篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)押新高考第22题 导数-备战2022年高考数学临考题号押题(新高考专用)(已下线)押全国卷(理科)第21题 导函数综合-备战2022年高考数学(理)临考题号押题(全国卷)(已下线)押全国卷(文科)第21题 导函数综合-备战2022年高考数学(文)临考题号押题(全国卷)(已下线)文科数学-2022年高考考前20天终极冲刺攻略(四)(6月5日)(已下线)2022年高考考前20天终极冲刺攻略(一)【理科数学】(5月20日)湖南省长沙市长郡中学2022届高三下学期高考前冲刺(一)数学试题(已下线)第06讲 利用导数研究函数的零点(方程的根)(讲+练)-2023年高考数学一轮复习讲练测(新教材新高考)2023版 湘教版(2019) 选修第二册 过关斩将 第1章 综合拔高练2023版 苏教版(2019) 选修第一册 名师精选卷 第五章 导数及其应用(已下线)考向12 含e^x,ln x与x的组合函数(重点)(已下线)2021年高考浙江卷数学一题多解福建省厦门市厦门第二中学2023届高三10月数学第二次阶段考试试题(已下线)专题09 导数压轴解答题(证明类)-3(已下线)专题9 函数与导数 第5讲 导数与函数的零点问题(已下线)专题19 押全国卷(理科)第21题 导数(已下线)专题22 导数解答题(理科)-3(已下线)专题22 导数解答题(文科)-2(已下线)专题6 导数与零点偏移【讲】
5 . 已知
是各项都为整数的等比数列,
是等差数列,
,
,
.
(Ⅰ)求
和
的通项公式;
(Ⅱ)设
表示数列
的前
项乘积,即
,
.
(ⅰ)求
;
(ⅱ)若数列
的前
项和为
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebaf2a2590bb84d646957f913d78f6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b575b74af96b739ba6d8fa8088d8cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769fe52ac96348d3b12d23d06d702595.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643a5fb1c6254e1ee355872d2afc7e7.png)
![](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/32f81c7dbe91ed0a67c9b98a84fb384c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643a5fb1c6254e1ee355872d2afc7e7.png)
(ⅱ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.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/19a33f48bf5f6b79b601f69552c892cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de23c44e267c2bc99efc56bec3a8dac.png)
您最近一年使用:0次
6 . 已知函数
,
(
为自然对数的底数),
.
(Ⅰ)若
,求函数
的单调区间;
(Ⅱ)若
恒成立,求实数
的值;
(Ⅲ)若直线
是曲线
的一条切线.求证:对任意实数
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad406e22502cf97b27d51bb87258622c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ec6ad1c734902409ff399e95525388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be812216ebb70fdf53eb519d22a6690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a36ede780090698d1dcb4b136a90193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅲ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad406e22502cf97b27d51bb87258622c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f63d0559956db2f2519dd0b23112b4.png)
您最近一年使用:0次
2021-05-12更新
|
889次组卷
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2卷引用:天津市南开区2021届高三下学期二模数学试题
名校
解题方法
7 . 已知函数
.
(1)
,求函数
的最大值;
(2)若
恒成立,求
的取值集合;
(3)令
,过点
作曲线
的两条切线,若两切点横坐标互为倒数,求证点
一定在第一象限内.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c013a7b9d9eba700eb2c7dca0e9e2b2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e6eed28e95d743071cf09483bc573c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e89249f9a184300e0e278b194cf51a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4133958c09fdd82cda8838c9cf46ccda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2021-05-06更新
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1230次组卷
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4卷引用:天津市武清区杨村第一中学2021届高三下学期高考热身训练(二)数学试题