名校
解题方法
1 . 定义在正整数上的函数满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b26fda0adc4dd5ad23685a90f21bcc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/003374e1df0fe77d1f9c7d1d7de0fd5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-01-05更新
|
1245次组卷
|
5卷引用:河南省高考联盟 2021-2022学年上学期高三12月教学检测文科数学试题
河南省高考联盟 2021-2022学年上学期高三12月教学检测文科数学试题河南省信阳市新县高级中学2024届高三考前第五次适应性考试数学试题(已下线)2022年全国新高考II卷数学试题变式题20-22题(已下线)2022年全国新高考II卷数学试题变式题5-8题黑龙江省绥化市绥棱县第一中学2022-2023学年高二下学期6月月考数学试题
2 . 某地准备在山谷中建一座桥梁,桥梁及山谷的竖直截面图如图所示,谷底为点O,
为铅垂线(
在桥梁AB上).以O为原点建立直角坐标系,左侧山体曲线AO的方程为
,右侧山体曲线BO的方程为
,其中x,y的单位均为m.现在谷底两侧建造平行于
的桥墩CD和EF,其中C在线段
上,E在线段
上,且
m,
.
![](https://img.xkw.com/dksih/QBM/2021/12/25/2880222361378816/2886346853195776/STEM/339bfc80b4dd471c966f8a12f342d7f3.png?resizew=284)
(1)求CE的长;
(2)为了增加桥梁的结构强度,要在桥梁上的C,E之间找一点P,修建两个支撑斜柱DP和FP,当
最大时,求CP的长.(结果精确到0.1m,参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abbe2aba242716238b79c46bb1f40e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f327a9a8f969225929a4b9d2fc83576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a60ad7dfc9b8a902adbbf3bca3bdcdf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd37244e07a7f1e6b0d8afdb469cf76e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913d2a71d4012f2e38a2fc3a1d33d389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c353ad1aadb0c8680d9901bf9dc43b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad34aa4ab53b0f85f6f02d07968eeeec.png)
![](https://img.xkw.com/dksih/QBM/2021/12/25/2880222361378816/2886346853195776/STEM/339bfc80b4dd471c966f8a12f342d7f3.png?resizew=284)
(1)求CE的长;
(2)为了增加桥梁的结构强度,要在桥梁上的C,E之间找一点P,修建两个支撑斜柱DP和FP,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b2acb865af089b1c4f872c99106d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a8d188d7961d71439fdb53f9dbeaeb.png)
您最近一年使用:0次
2022-01-03更新
|
324次组卷
|
3卷引用:河南省名校联盟(十所名校)2021-2022学年高三上学期12月考文科数学试题
解题方法
3 . 设抛物线
:
,其焦点为
,准线为
,点
为
上的一点,过点
作直线
的垂线,垂足为
,且
,
.
(1)求抛物线
的方程;
(2)设点
为
外的一点且
点不在坐标轴上,过点
作抛物线
的两条切线,切点分别为
,
,过点
作
轴的垂线,垂足为
,连接
,
,证明:直线
与直线
关于
轴对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc59002b6996e33752f11637075ceb96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bfdfd47b037e85f1d265c5f7038cd14.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77e9c89b7275b0c1a9af5c9a72e5968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b5e290c6b2c5508a3bf6117afbf7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77e9c89b7275b0c1a9af5c9a72e5968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b5e290c6b2c5508a3bf6117afbf7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
2021-12-02更新
|
467次组卷
|
3卷引用:河南省2021-2022学年高三尖子生11月联合诊断性测试数学(文)试题
河南省2021-2022学年高三尖子生11月联合诊断性测试数学(文)试题中学生标准学术能力诊断性测试2021-2022学年高三上学期11月测试文科数学试题(已下线)综合检测卷(能力挑战卷)-【一堂好课】2021-2022学年高二数学上学期同步精品课堂(人教A版2019选择性必修第一册)
4 . 周口市广播电视塔位于周口市区七一路和周口大道交叉口处,该塔有效地解决了周口市广播电视无线信号覆盖范围小、信号质量差的问题.发射塔由塔座、塔身、井道、塔楼和天线等
个主要部分组成(如图1所示),其中天线为传统的四边形空间桁架结构,横截面层层缩进,在外形上有着芝麻开花节节高的吉祥寓意.国庆假期,章阳同学在取得有关部门许可的前提下,利用无人机对广播电视塔进行拍照与摄像.章阳同学在地面点
处测得塔楼
的仰角为
,无人机在
处沿仰角为
的方向飞行
米后到达
处,测得
,且
,
,
,
,
五个点都在同一平面内(如图2所示).
![](https://img.xkw.com/dksih/QBM/2021/11/23/2857692062326784/2858053833318400/STEM/e903456d9f8a45e48f6930dc665e1ca6.png?resizew=554)
(1)求塔楼到地面的高度
;
(2)如果广播电视塔的天线
的长是
米,无人机从
到
的飞行过程中,在点
处观看天线
的视角为
(即
),为了拍摄到天线
最为清晰的图像,要求视角
最大.若点
处距离地面的高度
为
米,那么
为何值时,无人机拍摄到天线
的图像最清晰?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.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/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf15952853fb42e8fd9a726598f67ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3ecac7aca747ed5e6ef84d907869e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f2665526efab6fdd59a4fe1bfe4e39.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2021/11/23/2857692062326784/2858053833318400/STEM/e903456d9f8a45e48f6930dc665e1ca6.png?resizew=554)
(1)求塔楼到地面的高度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)如果广播电视塔的天线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b765e032d24c1557ff29cb6f70be0a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26689ae5eba9a29775b20d7a2dcd3ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2021-11-24更新
|
572次组卷
|
3卷引用:河南省九师联考2021-2022学年高二上学期期中考试文科数学试题
5 . 设正项数列
的前
项和为
,当
时,
,
,
成等差数列,给出下列说法:①当
时,
;②
的取值范围是
;③
;④存在
,使得
.其中正确说法的个数为( )
![](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/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aa5a49eb4ca6fdeec891b62ab8be6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05201ef79a5d5904f492845396fb5470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694e28ab329a5738b2f4073771435760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c8cf0e4defb2d5ff94f17e41e5fc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e932b397c3f82b201dd412a946028ee.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知直线
分别与函数
和
的图象交于点
、
,现给出下述结论:①
;②
;③
;④
,则其中正确的结论个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501a6d50c937729c8d0f02b2b62a0ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2eff609c6043c2a89a6dd163fe2244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12be206d66e65eb92ef08bad8cd8f71d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f700e9e84ec901bf75313a29757740fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c6510c0a13618cb9cad14172480c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f76409bffa66c2157ea8bac43cede7.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
2021-10-28更新
|
1765次组卷
|
7卷引用:河南省信阳市罗山县2021-2022学年高三上学期第一次调研考试数学(文)试题
河南省信阳市罗山县2021-2022学年高三上学期第一次调研考试数学(文)试题(已下线)5.3 导数在研究函数中的应用(难点)(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)(已下线)第5章 导数及其应用 单元综合检测(难点)(单元培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)吉林省长春北师大附属学校2021-2022学年高三上学期期中考试数学(理)试题江西省师大附中2020届高三三模考试理科数学试题(已下线)对点练15 对数与对数函数-2020-2021年新高考高中数学一轮复习对点练辽宁省大连育明中学2022-2023学年高三上学期期中考试数学试题
解题方法
7 . (1)若
,求
的最小值;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313fbfc0f3b2cd46ca436ab3f509af2b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23eede15bfecfcefaced07619975c571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
8 . 已知抛物线
:
的焦点为
,点
在
上,直线
:
与
相离.若
到直线
的距离为
,且
的最小值为
.过
上两点
分别作
的两条切线,若这两条切线的交点
恰好在直线
上.
(1)求
的方程;
(2)设线段
中点的纵坐标为
,求证:当
取得最小值时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c6d3c99b7004603ba9ea9c341b8b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463a4183ac8d19a48c4f43faebbb9125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7116071164cdc45f5d312a437c68bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada25f76504c3fd1226da43c94cb4277.png)
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9 . 已知函数f(x)满足:对任意x∈R,f(﹣x)=﹣f(x),f(2﹣x)=f(2+x),且在区间[0,2]上,f(x)=
+cosx﹣1,m=f(
),n=f(7),t=f(10),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50520e416713b6ef6edbc58d586112b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
A.m<n<t | B.n<m<t | C.m<t<n | D.n<t<m |
您最近一年使用:0次
2021-06-14更新
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2646次组卷
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9卷引用:河南省驻马店市环际大联考圆梦计划2021-2022学年高三上学期阶段性考试(三)数学(理科)试题
河南省驻马店市环际大联考圆梦计划2021-2022学年高三上学期阶段性考试(三)数学(理科)试题全国Ⅲ卷2021届高三数学(理)模拟试题(四)四川省成都七中2020-2021学年高二下学期文科零诊数学试题四川省成都市第七中学2020-2021学年高二下学期零诊模拟考试数学(理)试题(已下线)第五章 一元函数的导数及其应用单元测试(巅峰版)-【新教材优创】突破满分数学之2020-2021学年高二数学课时训练(人教A版2019选择性必修第二册)四川省成都市第七中学2020-2021学年高二下学期期末数学试题四川省成都市第七中学2020-2021学年高二下学期6月月考数学文科试题(已下线)专题2-2 函数性质2:“广义”奇偶性-3甘肃省兰州市西固区兰州市第六十一中学2023届高三上学期10月月考理科数学试题
名校
10 . 给出如下关于函数
的结论:
①对
,都有
;
②对
,都
,使得
;
③
;
④
,使得
.
其中正确的有___________ .(填上所有你认为正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5220c1d29955df47343122a463c46a92.png)
①对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
②对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b325f9ae2fde7a61e30033e4387a957c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5035928ab72ba58edd33ed35fef9f757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5148c90b6d762234102e5bf5ca4c5c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14cb0b30e513ff8d1abd326e6f7d7f3.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045748e3e58bfc29cf00ea0b80d2d56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89fc72bb0889c759e429be4e675691c.png)
其中正确的有
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3卷引用:河南省新乡市辉县市第一高级中学2020-2021学年高二下学期第二次阶段性考试数学(理)试题
河南省新乡市辉县市第一高级中学2020-2021学年高二下学期第二次阶段性考试数学(理)试题四川省成都市第七中学2020-2021学年高二下学期期中数学(文科)试题(已下线)专题03 《导数及其应用》中的压轴题-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)