名校
解题方法
1 . 如图,四棱锥
的底面
是边长为3的正方形,
为侧棱
的中点.
平面
;
(2)若
底面
,且
,求四棱锥
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec35c2182c5e0c80b766adceb058e5f.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/0e3334853138fb74687d66b1e45f2fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f11f1840eb8b17e7b07c3fe7e987a9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000a5d60075d7f1b9471cb12c18ebecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1df52ae62233966872426b32e262da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec35c2182c5e0c80b766adceb058e5f.png)
您最近一年使用:0次
2024-02-29更新
|
1251次组卷
|
3卷引用:安徽省合肥市第一中学2023-2024学年高二下学期学业水平考试数学模拟卷
安徽省合肥市第一中学2023-2024学年高二下学期学业水平考试数学模拟卷湖南省岳阳市平江县第三中学2023-2024学年高二普通高中学业水平合格性考试仿真模拟(专家卷四)数学试题(已下线)专题7.2 空间中的位置关系【十大题型】
名校
2 . 从甲、乙两班某次学业水平模拟考试成绩中各随机抽取8位同学的数学成绩.
甲班:78,69,86,58,85,97,85,98
乙班:66,78,56,86,79,95,89,99
规定考试成绩大于或等于60分为合格.
(1)求甲班这8位同学数学成绩的极差,并估计甲班本次数学考试的合格率;
(2)估计乙班本次考试数学成绩的平均分,并计算乙班这8名同学数学成绩的方差.
甲班:78,69,86,58,85,97,85,98
乙班:66,78,56,86,79,95,89,99
规定考试成绩大于或等于60分为合格.
(1)求甲班这8位同学数学成绩的极差,并估计甲班本次数学考试的合格率;
(2)估计乙班本次考试数学成绩的平均分,并计算乙班这8名同学数学成绩的方差.
您最近一年使用:0次
2024-02-29更新
|
397次组卷
|
3卷引用:安徽省合肥市第一中学2023-2024学年高二下学期学业水平考试数学模拟卷
安徽省合肥市第一中学2023-2024学年高二下学期学业水平考试数学模拟卷湖南省岳阳市平江县第三中学2023-2024学年高二普通高中学业水平合格性考试仿真模拟(专家卷四)数学试题(已下线)第02讲 用样本估计总体-《知识解读·题型专练》(人教A版2019必修第二册)
3 . 已知函数
.
(1)求
的定义域;
(2)判断
在其定义域上的单调性,并用定义证明;
(3)若
,解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abbb5e1dc8518091758053c05d198f45.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c8f0e74da7518ef9669f25829cdf77.png)
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解题方法
4 . 如图,在四棱柱
中,底面
为矩形,侧面
为菱形,平面
平面
,
.
平面
;
(2)求四棱柱
的体积.
![](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/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eff0db05826cbff651faf0144904b32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8a76f84d7a2d2fed9650597c2c9fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1dc1290b7e593400e53e9a60e1d1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504a36c231b8e80724d01649e7c0944f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
(2)求四棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
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5 . 将函数
的图象上所有的点向左平移
个单位长度得到函数
的图象.求:
(1)
的值;
(2)
的单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b342a9161e2e1ea07acdadc8dcb1f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ac3e1432957734d372d8485fb84de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28ea179ca8fbc5b00f57941185987eb4.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
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6 . 某城市为了鼓励居民节约用电采用阶梯电价的收费方式,即每户用电量不超过
的部分按0.6元
收费,超过
的部分,按1.2元
收费.设某用户的用电量为
,对应电费为
元.
(1)请写出
关于
的函数解析式;
(2)某居民本月的用电量为
,求此用户本月应缴纳的电费.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c8eca32cf6a2da3057de1f9de61be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa9b554fae674cfd784966c4131ed91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c8eca32cf6a2da3057de1f9de61be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa9b554fae674cfd784966c4131ed91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c07df383875bfb5de3f1455f66a303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)请写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)某居民本月的用电量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219173b7699455d751c6bb949867c51a.png)
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解题方法
7 . 如图,正三棱柱
中,
分别是棱
上的点,
.点M为棱
上的动点,满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/0efce3ec-061b-4193-afd2-e9942d9c847a.png?resizew=145)
(1)当
为何值时,直线
平面
,并证明你的结论;
(2)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c95c0160e73beb94a4a1cbc0168e9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e80c9702720a88f4a31c0484c7ff5c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e97fcdcfd6183b976a61ef3222c607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172445f5dadf958310b11a6b970bc05b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/0efce3ec-061b-4193-afd2-e9942d9c847a.png?resizew=145)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98dbbf1a30ea54a46b903a9645debab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d557872d3299577be8c5872ba1ae5b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8762b26b773a3c41e51d1eb3113169.png)
您最近一年使用:0次
8 . 阅读下面题目及其解答过程.
以上题目的解答过程中,设置了①~⑤五个空格,如下的表格中为每个空格给出了两个选项,其中只有一个正确,请选出你认为正确的选项,并填写在答题卡的指定位置(只需填写“A”或“B”),
已知函数![]() (1)证明: ![]() (2)证明: ![]() ![]() 解:(1) ![]() ![]() 因为对任意 ![]() ![]() ![]() ![]() (2)③________ ![]() ![]() ![]() ![]() ![]() ![]() 因为 ![]() 所以 ![]() ![]() ![]() 所以 ![]() ![]() 所以 ![]() ![]() |
空格序号 | 选项 |
① | A.![]() ![]() |
② | A.![]() ![]() |
③ | A.任取 B.存在 |
④ | A.![]() ![]() |
⑤ | A.![]() ![]() |
您最近一年使用:0次
解题方法
9 . 如图,直线
和直线
均垂直于平面
,且
,
,
为线段
上一动点.
![](https://img.xkw.com/dksih/QBM/2024/1/16/3412361497305088/3412491456462848/STEM/dcf031b5178e44099345b5a54a29929a.png?resizew=131)
(1)求证![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
平面
;
(2)求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f6923bc38131265bed394a3b38937e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/2024/1/16/3412361497305088/3412491456462848/STEM/dcf031b5178e44099345b5a54a29929a.png?resizew=131)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fb6e81fee5674c3e26a65e58cc506d.png)
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10 . 已知
和数表
,其中
.若数表
满足如下两个性质,则称数表
由
生成.
①任意
中有三个
,一个3;
②存在
,使
中恰有三个数相等.
(1)判断数表
是否由
生成;(结论无需证明)
(2)是否存在数表
由
生成?说明理由;
(3)若存在数表
由
生成,写出
所有可能的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1b76c6898e230717d3daed334b0303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbda44091b0da7321b26722d6ab78845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac56300140ed9e27f8dff86ef1eaea0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c7d6627a568c6eaae35260d53dfb29.png)
①任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29210b9144737a127a428679c58f406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd600b451b2b7f1680cbbcf36a49703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5137f97e66d136940d82a4027cd4fa2b.png)
(1)判断数表
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97e4a4a351df2053a3cab244213d41c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e88b1329f12c3b53e86627d04f5e5a3.png)
(2)是否存在数表
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79dc44942df9856c903cd70e4776e86b.png)
(3)若存在数表
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0808a749c7fe9d45bea1edbd3ee96e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f44f67ab69be2217f7884536cfa53aa.png)
您最近一年使用:0次
2024-01-17更新
|
1079次组卷
|
6卷引用:北京市第一次普通高中2023-2024学年高二上学期学业水平合格性考试数学试题
北京市第一次普通高中2023-2024学年高二上学期学业水平合格性考试数学试题辽宁省沈阳市第二中学2024届高三下学期开学考试数学试题(已下线)第一套 新高考新结构全真模拟1(艺体生)(模块二)(已下线)微考点8-1 新高考新题型19题新定义题型精选北京市第二中学2023-2024学年高一下学期期中考试数学试题2024届河北省名校联盟高考三模数学试题