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解题方法
1 . 如图,有一个棱台形的容器
(上底面
无盖),其四条侧棱均相等,底面为矩形,
,容器的深度为
,容器壁的厚度忽略不计,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d5cf5a8e0fc8db643ac42c69a93b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f328ba89c0a92a4447788b65571f7aa.png)
A.![]() |
B.该四棱台的侧面积为![]() |
C.若将一个半径为![]() |
D.若一只蚂蚁从点![]() ![]() ![]() |
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2024-06-13更新
|
436次组卷
|
2卷引用:山东省聊城第一中学2023-2024学年高一下学期第二次阶段性测试数学试题
名校
2 . “
,且
”是“
,且
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabccefb53769e520c114fce766b3a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea134f599285e3d32d2ab3e7186990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002ad1638f25e355d70d5ab63e637f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbea4ca0ff380f26dfe064a4f1921504.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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2024-06-12更新
|
1219次组卷
|
5卷引用:2024届山东省聊城市高三三模数学试题
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3 . 用斜二测画法画三角形OAB的直观图
,如图所示,已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a633df6d1b15deeab2acd9040c7177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20f4b71022249a5444911f124431843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ff12049bb9ee867712067c6367099f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a836d2dfc31d2bfc949bac8403cf2a4e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 如图,在正方形
中,
分别是
的中点,将
分别沿
折起,使
三点重合于点
.
平面
.
(2)证明:点
在平面
的投影为
的垂心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915db5d0ddd7944e4cd980d68c6f53a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47c7aa4eada142da5bfdad6aae629f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb92a5e7dc942c44d0f6d7f3906ff804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68855ca966712c3d38f73711ea997bcf.png)
(2)证明:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262b958cb704607cd5c0a92253de258e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a138fefcb02cc063b48967c0fc9d28f8.png)
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5 . 下列命题是真命题的是( )
A.上底面与下底面相似的多面体是棱台 |
B.正六棱锥的侧面为等腰三角形,且等腰三角形的底角大于![]() |
C.若直线![]() ![]() ![]() |
D.若一个几何体所有的面均为三角形,则这个几何体是三棱锥 |
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解题方法
6 . 设
,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a433074f4ce01d750ecab3825e8d75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-08更新
|
1088次组卷
|
3卷引用:2024届山东省聊城市高三三模数学试题
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7 . 如图,在正三棱柱
中,
,点
分别是棱
,
的中点,点
满足
,其中
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/18/e3be7da2-7c25-416c-b494-8bdc428bb5d4.png?resizew=129)
(1)当
时,求证:
∥平面
;
(2)当
时,是否存在点
使得平面
与平面
的夹角的余弦值是
?若存在,指出点
的位置,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f21c7c194c5bc2986a21fd441c81495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4885cf9af62851cffec98204b238193a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473b7977c33d8eab97bc08361ee03256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a100b95041aa56e3b79d96dfdb5a27ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/18/e3be7da2-7c25-416c-b494-8bdc428bb5d4.png?resizew=129)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3e3a793d8df4deb46f456cda72b4c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8035fc825a001d7d9a3dacd8271662.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df5935c893580c77ab6fa6eb0a70bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8035fc825a001d7d9a3dacd8271662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83303d3784492506fc44f2b4d6b07bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024-06-04更新
|
589次组卷
|
2卷引用:2024届山东省聊城市高三三模数学试题
名校
解题方法
8 . 已知函数
,
的解集为
.
(1)求a,b的值;
(2)若
是定义在
上的奇函数,且当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1a94ea3c278c2197572cc1b7725b1.png)
(ⅰ)求
的解析式
(ⅱ)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd03b9fd9b8db6423595ea700d77fff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c72d250a079379c5175693c165248c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bb173dec64bf0f5ed7b41ad23ac1e5.png)
(1)求a,b的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1a94ea3c278c2197572cc1b7725b1.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(ⅱ)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0e03f79adcf5d047343f276741d2b3.png)
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解题方法
9 . 若
的展开式中常数项是10,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f5d42ec2f8cb4154d54535bc9bb1ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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解题方法
10 . 下列命题正确的是( )
A.命题:“![]() ![]() ![]() ![]() |
B.设定义在![]() ![]() ![]() |
C.函数![]() ![]() |
D.已知![]() ![]() ![]() ![]() ![]() |
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