1 . 如图所示,在
中,点
在
边上,点
在线段
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/a5b4a0d2-1629-4d90-99fb-a6479cb11e05.png?resizew=488)
(1)若
.
①如图1,若
,
,过
作
于点
,直接写出
的值为 ;
②如图2,若
,求
的值.
(2)如图3,已知
为
的角平分线,
,
,直接写出线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/a5b4a0d2-1629-4d90-99fb-a6479cb11e05.png?resizew=488)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092f6c8e7e90d46c1ee0457f17daeb4a.png)
①如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629be4a6de577f13c9b0a524e7a5e383.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c06aa28f4e4ee00cdf3c8e7847225ed.png)
②如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7e75d7342e6f087370d09181b17a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120223970943dc87c216b0860e502254.png)
(2)如图3,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e50f0d02d0bd51ae361d276ed9dea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d035c3a7a6126dabbba817cf0506a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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2 . 已知函数
,
,
.
(1)当
,
时,
①求
的单调递增区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
②当
时,关于
的方程
恰有
个不同的实数根,求
的取值范围.
(2)函数
,
是
的零点,直线
是
图象的对称轴,且
在
上单调,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd7728124da1f8c319540aa1b7e064c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400128f23d3ad4e2cb8a4315f12df9cc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05a467ddaa138590b3b56615c2c42a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d437140d9efb7165512a2c798dabffd.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9edd6fb31fb1a38feba7a75cca246d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addf49459589cfbc55b107b467222212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a8862d7582bd83cd61890a1086cf57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d234b148b4ead8bb8eb746993d35686c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6461468072bd27afd53fd5f9c3bf344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f0cc7a516f77dc017a6653a78c7063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
2022-07-05更新
|
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7卷引用:湖北省咸宁市2021-2022学年高一下学期期末数学试题
湖北省咸宁市2021-2022学年高一下学期期末数学试题(已下线)期末模拟卷02(测试范围:必修第一册全部内容)-【单元测试】2022-2023学年高一数学分层训练AB卷(人教A版2019必修第一册)(已下线)第五章 三角函数(单元测试卷)-【同步题型讲义】(人教A版2019必修第一册)河南省南阳市桐柏县第一高级中学2022-2023学年高一下学期期末数学试题湖北省宜昌英杰学校2022-2023学年高一下学期5月月考数学试题(已下线)专题5-5 三角函数综合大题归类(2) - 【巅峰课堂】题型归纳与培优练四川省成都市树德中学2023-2024学年高一下学期3月月考数学试题
名校
3 . 如图,在四棱锥
中,
平面
,底面
是直角梯形,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/3/43eeef45-6de1-4cd9-b44a-9a482c42b51c.png?resizew=208)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
平面
.
(2)若二面角
的正切值为
,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe19db910be27ec24a950337404e2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/3/43eeef45-6de1-4cd9-b44a-9a482c42b51c.png?resizew=208)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715cc9ea5e7d80930284ffb117142770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306681bd5aaa51e9c63ab3002e23dec5.png)
您最近一年使用:0次
2022-07-02更新
|
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6卷引用:湖北省咸宁市2021-2022学年高一下学期期末数学试题
名校
解题方法
4 . 已知函数
,
,当
时,不等式
恒成立,则实数a的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829392306f7f9e513ee31aead77133e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939367072bcf6962f5ad71be9ddb373b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292102fb7a87a5d11e2a29fd155a45b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf2f37c55a1eb5633b5ce09b8c544e2.png)
您最近一年使用:0次
2021-09-16更新
|
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7卷引用:湖北省咸宁鲁迅学校2022-2023学年高三上学期10月月考数学试题
5 . 在正方体
中,点M,N分别是线段
和
上不重合的两个动点,则下列结论正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/552b0939-7ce0-47a8-a3af-668f87b34399.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3490f2c22393e71edfbf594f6b3203b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7fd56dcf0be537cf7327de17f27bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d6b1e0da4ddd744a8be5794290f5aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/552b0939-7ce0-47a8-a3af-668f87b34399.png?resizew=160)
A.![]() | B.![]() | C.平面![]() ![]() | D.平面![]() ![]() |
您最近一年使用:0次
2019-03-13更新
|
1195次组卷
|
3卷引用:湖北省咸宁鲁迅学校2022-2023学年高三上学期10月月考数学试题