解题方法
1 . 已知
,且
, 则
的取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f257b71e2b7886aadf7f1ebc809c10b1.png)
A.8 | B.9 | C.![]() ![]() | D.![]() |
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解题方法
2 . 如图,在四棱锥
中,底面
是正方形,侧棱
底面
,
,点
是
的中点,
在直线
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/30af9cba-7456-44ab-bba1-c59334d2e408.png?resizew=143)
(1)若
,求
的值;
(2)求二面角
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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d4d36ae30487030b827ce9413b9f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/30af9cba-7456-44ab-bba1-c59334d2e408.png?resizew=143)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2484662ae40c406b054d14a7f9e118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aafecdff4e61f7e74e06db9b31c826c.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5777a34d4761364c48e2b53ab79ff1.png)
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3 . 在四面体
中,以上说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.若![]() ![]() ![]() |
B.若四面体![]() ![]() ![]() ![]() |
C.若![]() |
D.若![]() ![]() ![]() |
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2023-12-14更新
|
115次组卷
|
2卷引用:辽宁省锦州市联合校2021-2022学年高二上学期期末模拟数学试题(锦州五高命题)
解题方法
4 . 函数
在
上有两个不同的零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641e6d1a75e4b65b38b714205eb1d0ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18bd80c6c4142f68e89f4ad44570b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 在
中,角A,B,C所对的边分别是a,b,c,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783d6adfa8fb1352679c5185258d842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f85678de64dcc06b3efcdb6a127170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2023-07-16更新
|
684次组卷
|
2卷引用:辽宁省锦州市2022-2023学年高一下学期期末数学试题
解题方法
6 . 函数
在区间
上的所有零点之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9a6b22f4fb3e406184063870df873a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7d7a17174f367f032290d5d82f9f4b.png)
A.8 | B.10 | C.12 | D.16 |
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7 . 已知复数
,
是方程
的两根,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8646eaa05bfde39d27813c301a076420.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 如图,四棱锥
的底面ABCD是菱形,且
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e892a4b8ed1afaa322f0a6d3b735b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab5b19274df22cd2421a4eb2845c6c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e11dbd41c06a554d612eca726c9741.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/16/396f82b8-15b8-48be-b3fa-0c91f372c9fc.png?resizew=199)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 下列关于函数
的说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d401a97846e2ddefd7a9f8f3089a699.png)
A.定义域为![]() | B.在区间![]() |
C.最小正周期是![]() | D.图象关于直线![]() |
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10 . 如图所示圆台,
,
分别是上、下底面的圆心,母线AB与下底面所成的角为
,BC为上底面直径,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260200d547998bcac50a4a491382e7f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9572c25e0ef0d5a3d7ed9e9547e23b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4ba06158b83893cced78c8748ea22a.png)
A.圆台的母线长为10 |
B.圆台的全面积为![]() |
C.由点A出发沿侧面到达点C的最短距离是![]() |
D.在圆台内放置一个可以任意转动的正方体,则正方体的棱长最大值是4 |
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