名校
1 . 已知函数
.
(1)当
时,证明:
有唯一零点;
(2)若函数
有两个极值点
,
(
),求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0bdd1925b3dc774beb38f7bfc10738.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e111595ac59e1fb558b6a465a02829.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ac3f646599fe63ff886d34750e4e6a.png)
您最近一年使用:0次
2020-09-05更新
|
6492次组卷
|
4卷引用:广东省潮州市饶平县第二中学2021-2022学年高二下学期期初数学试题
广东省潮州市饶平县第二中学2021-2022学年高二下学期期初数学试题浙江省温州市瑞安市上海新纪元高级中学2019-2020学年高二下学期期末数学试题(已下线)极值点偏移专题03 不含参数的极值点偏移问题(已下线)极值点偏移专题04含参数的极值点偏移问题
2 . 如图所示,在四棱锥
中,底面四边形
是菱形,
是边长为2的等边三角形,
为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/3c39daab-7e06-4c2c-bd1d-63c93403a3c7.png?resizew=174)
(1)求证:
平面
;
(2)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa0c1a6e9990d435f5df2cba32cc203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f70bb32579240d4d35864554641ffb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/3c39daab-7e06-4c2c-bd1d-63c93403a3c7.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb178784aa857d4d4683e650273f054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
您最近一年使用:0次
名校
3 . 已知函数
.
(1)讨论函数
的单调性;
(2)若存在正数
,使
成立,求
的取值范围;
(3)若
,证明:对任意
,存在唯一的实数
,使得
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe008fe11acbc34a61c7f44c5811be57.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9e6a220e85fa5a1d7c773bb143d46f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d701701514d29d22d56e8a35f797d267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99851fb4df35dfb2c4efd4a839b901f.png)
您最近一年使用:0次
2024-04-18更新
|
1721次组卷
|
4卷引用:广东省潮州市华南师范大学附属潮州学校2023-2024学年高二下学期阶段二教学质量检测数学试卷
名校
4 . 如图,在三棱锥
中,
与
都为等边三角形,平面
平面
分别为
的中点,且
在棱
上,且满足
,连接
.
平面
;
(2)设
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fda66addd3e54c86ec632ead773227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d6efca23a04c9c25e8d6c8ccd78e73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c17a4bb61ec5ac7875f91bce4aa4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d65319fd396b9fd220f7a95a7a6042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a459f78e4a3516d8a8535290ede7f386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582d072dceb5819a1b69d526f1d0eb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce9e55b81e0476b1465e46cbbe4a79a.png)
您最近一年使用:0次
2024-03-29更新
|
1352次组卷
|
5卷引用:广东省潮州市华南师范大学附属潮州学校2023-2024学年高二下学期阶段二教学质量检测数学试卷
名校
5 . 如图,四边形
是圆柱底面的内接矩形,
是圆柱的母线.
上存在点
,使
平面
;
(2)在(1)的条件下,设二面角
为
,
,
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)在(1)的条件下,设二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03a08e6ea74ee085ed9dd4a05af94c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98823cbc09ca52df1fbcc446eba3e44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b565e518d475a50358fedff2f0bb8dec.png)
您最近一年使用:0次
2024-03-13更新
|
1516次组卷
|
4卷引用:广东省潮州市饶平县第二中学2023-2024学年高二下学期第一次月考数学试题
名校
6 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3c99bd82e5a900022c3d20e2335ec4.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27f3e843409e6334c8bb2cb683722f3.png)
您最近一年使用:0次
2024-03-06更新
|
2117次组卷
|
10卷引用:广东省潮州市松昌中学2023-2024学年高二下学期期中考试数学试题
广东省潮州市松昌中学2023-2024学年高二下学期期中考试数学试题陕西省榆林市府谷县府谷中学2023-2024学年高二上学期开学考试数学试题(已下线)导数专题:导数与不等式成立问题(6大题型)-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第二册)河南省洛阳市强基联盟(新安一高)2023-2024学年高二3月联考数学试卷 广东省清远市阳山县南阳中学2023-2024学年高二下学期第一次月考数学试题(已下线)高二下学期期中考试(范围:数列、导数、计数原理)-2023-2024学年高二数学下学期重难点突破及混淆易错规避(人教A版2019)黑龙江省双鸭山市第一中学2023-2024学年高二下学期4月月考数学试题(已下线)模块一 专题6 导数在不等式中的应用(讲)(人教B版)四川省巴中市平昌县第二中学2023-2024学年高二下学期第一次月考数学试题黑龙江省哈尔滨市第十一中学校2023-2024学年高二下学期期中考试数学试题
名校
7 . 在长方体
中,底面
为正方形,
,
,
为
中点,
为
中点.
;
(2)求
与平面
成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd694ad3a4733c7c84aaa7946aeea4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd34ae1a0406994d2c07a61e9220a3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9fa8832f98b5418a7d75892f7951b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094e639c2b31dc54b1b3e6456e77843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b7dfb29ee8579c82f30b8ed7f77c59.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c640abbdc470479407da1ae2aa80fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6c1a3256b229a73b7eb2cb58d68af3.png)
您最近一年使用:0次
2023-11-15更新
|
224次组卷
|
2卷引用:广东省潮州市松昌中学2023-2024学年高二上学期期中考试数学试题
名校
8 . 如图,在正方体
中, E、F分别是
,CD的中点,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/0f0c7a82-57ad-4b44-97d8-ae3743d42b52.png?resizew=159)
(1)求证:
平面ADE;
(2)求异面直线EF,CB1所成的角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/0f0c7a82-57ad-4b44-97d8-ae3743d42b52.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36df8302f33f07a69cef14c3b822902.png)
(2)求异面直线EF,CB1所成的角
您最近一年使用:0次
2023-10-13更新
|
463次组卷
|
8卷引用:广东省潮州市湘桥区南春中学2021-2022学年高二上学期第一次月考数学试题
解题方法
9 . 已知公差不为0的等差数列
的前n项和为
,
,且
,
,
成等比数列.
(1)求数列
的通项公式及
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41be41a5a4965ebd346e7ee74d21f0f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05cc3cb89d22f3397ae441cd9dfa408a.png)
您最近一年使用:0次
10 . 如图,在四面体ABCD中,E,F分别是线段AD,BD的中点,
,
,
.
(1)证明:
平面BCD;
(2)若平面DAB与平面CAB的夹角为
,求平面ACE与平面BCE的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b19bfed56d8c7bd9067ee4d23dae0dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb6e4368e1158045340ea765cc318b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a05e0ab55e325fb3b85fc8ca9c27c76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/23/1da284e7-d930-4fa3-ad5a-7ae272b1e3ea.png?resizew=133)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
(2)若平面DAB与平面CAB的夹角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
您最近一年使用:0次