名校
解题方法
1 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2ab5c4e0e536807a39ed9a85acf0c3.png)
(1)若不等式
的解集为
,求
的值;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2ab5c4e0e536807a39ed9a85acf0c3.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf818dd484cc4cebd40a5f28eb8e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e1cda660d1176d8c93210d038cb0fc.png)
您最近一年使用:0次
2023-07-16更新
|
1102次组卷
|
4卷引用:新疆维吾尔自治区普通高中2022-2023学年高二7月学业水平考试数学试题
解题方法
2 . 在三棱锥
中,
底面
,
,E , F分别是BC,PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/18fe86ae-cb4c-4eb3-ac5b-b648647184e8.png?resizew=163)
(1)证明:
平面
;
(2)证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/18fe86ae-cb4c-4eb3-ac5b-b648647184e8.png?resizew=163)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
您最近一年使用:0次
2023-07-16更新
|
700次组卷
|
2卷引用:新疆维吾尔自治区普通高中2022-2023学年高二7月学业水平考试数学试题
3 . 如图,三棱锥
中,
,
分别是
,
的中点.
(1)求证:
平面
;
(2)若
,
,
,
,
,
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/12/b9d8f7d7-e621-4da5-addd-c766a3e73bd5.png?resizew=146)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650c6c818df102a83ce5159e3208d01a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83cb6327dcbc8a998e6586bcfa7a3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45723dce96b74f027adcb1a4ecd19db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
您最近一年使用:0次
2023-06-08更新
|
1748次组卷
|
4卷引用:福建省普通高中2022-2023学年高二1月学业水平合格性考试数学试题
福建省普通高中2022-2023学年高二1月学业水平合格性考试数学试题(已下线)第07讲 立体几何大题(11个必刷考点)-《考点·题型·密卷》(已下线)模块五 专题2 期末全真能力模拟2专题07B立体几何解答题
解题方法
4 . 如图,P为圆锥的顶点,O为底面圆的圆心,AC为底面圆的直径,B是底面圆周上不同于A,C的任意一点,点D,E分别为母线PB,PC的中点.
(1)求证:
平面ABC;
(2)若
,
,求圆锥PO的体积.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/1/3f149e73-d1a8-46cf-adde-10237e7ec680.png?resizew=147)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063510e3c1fb6a7ccc3b8e3e3c7d660e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae890f9e8b32aa53a54158f24f4a87bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4957406b21df59fdf7fa184752287b.png)
您最近一年使用:0次
2023-06-29更新
|
1016次组卷
|
3卷引用:2023年湖南省普通高中学业水平合格性考试数学试题
5 . 如图,在三棱锥
中,侧面
底面
,且
的面积为6.
(1)求三棱锥
的体积;
(2)若
,且
为锐角,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e20c91aa2c9c3fa6e28c91c39509401.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/27/e4ad30f2-3e8a-4402-9de2-006ac3bd16f1.png?resizew=124)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4548f93753d1a71f126a4fad52df024a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2023-05-25更新
|
2290次组卷
|
7卷引用:福建省普通高中2021-2022学年高二6月学业水平合格性考试数学试题
福建省普通高中2021-2022学年高二6月学业水平合格性考试数学试题(已下线)高一下册数学期末考试综合础评估卷2-【超级课堂】(已下线)高一下册数学期末模拟卷(一)【超级课堂】四川省广元市宝轮中学2023届高三仿真考试(二)数学(文)试题云南省福贡县第一中学2022-2023学年高一(重点班)下学期第二次月考数学试题专题07B立体几何解答题(已下线)第04讲 直线、平面垂直的判定与性质(练习)
解题方法
6 . 如图,在四棱锥
中,底面
是菱形,且
,
为正三角形,
.
(1)求证:
面
;
(2)若
是
的中点,求
与面
所成角的正弦值.
![](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/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19269cd8c880d41ecb5aa9f5aba43f0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/05874cac-84ac-4701-9a29-5207b0da7d1f.png?resizew=179)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
解题方法
7 . 如图,在直四棱柱
中,底面
为菱形,
为
中点.求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/cd878f17-c7c0-4b57-ad8e-acd401832d74.png?resizew=153)
您最近一年使用:0次
2023-06-20更新
|
370次组卷
|
2卷引用:宁夏银川市2022-2023学年高二5月普通高中学业水平合格性考试训练数学试题
8 . 已知函数
,
.
(1)若
是奇函数,求a的值并判断
的单调性(单调性不需证明);
(2)对任意
,总存在唯一的
,使得
成立,求正实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c064cd16c1c95023009c344564a1022a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad0bcb38bd67c085ab01b13cf7a3e05.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3715365d7cf7959b963815c32327c4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30a4750430b4b0e9daa3edbef242184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
您最近一年使用:0次
2023-06-12更新
|
1407次组卷
|
3卷引用:2023年6月浙江省学业水平适应性考试数学试题
名校
解题方法
9 . 如图,PA是圆柱的母线,AB是底面圆的直径,C是底面圆周上异于A.B的一点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/d41d7b9e-3047-45ad-8ca3-13f630b59695.png?resizew=161)
(1)求证:
平面PAC
(2)若M是PC的中点,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9082547ec262e00ece8072817097d4e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/d41d7b9e-3047-45ad-8ca3-13f630b59695.png?resizew=161)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
(2)若M是PC的中点,求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8aa80ffd9de106f63a2469e54abcba.png)
您最近一年使用:0次
2022-10-24更新
|
1321次组卷
|
4卷引用:2022年1月广东省普通高中学业水平合格性考试数学试题
名校
10 . 已知圆
:
.
(1)求圆
的圆心坐标及半径;
(2)设直线
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b6e4a25a8896f90bc3c249954bd3d4.png)
①求证:直线
与圆
恒相交;
②若直线
与圆
交于
,
两点,弦
的中点为
,求点
的轨迹方程,并说明它是什么曲线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f46bd6985253f993dc2d1c12b801dc2.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b6e4a25a8896f90bc3c249954bd3d4.png)
①求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
②若直线
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2023-05-30更新
|
450次组卷
|
11卷引用:福建省2020-2021学年高二6月普通高中学业水平合格性考试数学试题
福建省2020-2021学年高二6月普通高中学业水平合格性考试数学试题(已下线)第2章 圆与方程综合测试-【暑假自学课】2022年新高二数学暑假精品课(苏教版2019选择性必修第一册)(已下线)第2章 圆与方程(A卷·知识通关练)(1)云南省大理州鹤庆县第三中学2022-2023学年高二上学期11月月考数学复习题试题河南省南阳市镇平县第一高级中学2022-2023学年高二下学期5月月考数学试题(已下线)专题2.9 直线与圆的方程大题专项训练(30道)-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)第11讲 第二章 直线和圆的方程 章末总结(3)(已下线)第1课时 课后 圆的标准方程(已下线)第2章 圆与方程章末题型归纳总结(1)湖南省长沙市长郡湘府中学2022-2023学年高二上学期第一次阶段练习数学试题(已下线)第08讲 圆的方程(3大考点九种解题方法)(2)