名校
解题方法
1 . 已知正八边形
的边长为
,
是正八边形边上任意一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17d4a6cf11cda87b3dfafaecdec683f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() ![]() ![]() |
B.![]() |
C.若函数![]() ![]() ![]() |
D.![]() |
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2 . 在正方体
中,动点
满足
,其中
,
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6168a14ce666e3212158413e428f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6423de2f7218cb6203393aaf188fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6612afffccf731637a818d5732e5ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4724421cffc6f0a2f8db1103b2cc587b.png)
A.对于任意的![]() ![]() ![]() ![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-04-23更新
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259次组卷
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2卷引用:江苏省邗江中学2023-2024学年学年高二下学期期中考试数学试题
名校
解题方法
3 . 如图,已知三棱柱
的侧棱与底面垂直,
,
,M,N分别是
,
的中点,点
在直线
上,且
.
取何值,总有
;
(2)当
取何值时,直线
与平面
所成角
最大?并求该角取最大值时的正切值;
(3)是否存在点
,使得平面
与平面
所成的二面角的正弦值为
,若存在,试确定点
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/09bdbf17f7bb0e70a339b4a1971d5c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597362da92c667625827a89c1c2e3dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4ece75fe9b8555909be5a00d2b7af0.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(3)是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024-04-23更新
|
611次组卷
|
3卷引用:江苏省邗江中学2023-2024学年学年高二下学期期中考试数学试题
江苏省邗江中学2023-2024学年学年高二下学期期中考试数学试题江苏高二专题02立体几何与空间向量(第二部分)(已下线)期末押题卷01(考试范围:苏教版2019选择性必修第二册)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)
名校
4 . 已知函数
.
(1)当
时,求
的值域;
(2)当
时,设
,求证:函数
有且只有一个零点;
(3)当
时,若实数
使得
对任意实数
恒成立,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd9454d93ceba0aabe7fd49940bfe05.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7126d6d76248996a222631cc9ea93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929d7dcd904be9aac64dfc5c68c3539e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7655d9321940385897c723a4f2136c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa5e9b6589b0c44b61f17028394b444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b511bcbe94aa484c0a067891fbf7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90de59980f26e4456ff705ca6842400b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8690b9a30328d99587ef690df5e704.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在边长为3的等边三角形
中,
且点
在以
的中点
为圆心,
为半径的半圆上,若
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81889370d45239939a36de53c4445d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95d146bdcc8ac0a256c12696e9b9826.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
6 . 若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7a98b117e51c5fa3028888e37fd515.png)
且
,在
上单调递增,则
和
的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7a98b117e51c5fa3028888e37fd515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f22112b96c70cf3073543dcfcc9369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f9482ef7fc0509d63aa49735c52740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-04-18更新
|
320次组卷
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2卷引用:江苏省扬州中学2023-2024学年高二下学期4月期中考试数学试题
名校
7 . 若
的角
所对边
,且满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd95a60e2fe536650186ee3ffa76934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-18更新
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940次组卷
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3卷引用:江苏省扬州中学2023-2024学年高一下学期4月期中数学试题
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8 . 已知
为
的内心,
,且满足
,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64476ffee8fd79c8ff6682dc504ce0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb370f9f62b28ff9ea09da2d3934c9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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2024-04-18更新
|
553次组卷
|
3卷引用:江苏省扬州中学2023-2024学年高一下学期4月期中数学试题
名校
解题方法
9 . 海宁一中高一生劳课上,朱老师组织学生在寝室楼下的荒地上种菜.如图,在一条直路边上有相距
米的A、B两定点,路的一侧是荒地,朱老师用三块长度均为10米的篱笆(不能弯折),将荒地围成一块四边形地块
(直路不需要围),经开垦后计划在三角形地块
和三角形地块
分别种植青菜、萝卜两种作物.已知两种作物的收益都与各自地块的面积的平方成正比,且比例系数均为
,即收益
,设
.
时,若要用一块篱笆将上述两三角形地块隔开,朱老师准备了15米的篱笆. 请问是否够用,并说明理由.
(2)求使两块地的总收益最大时,角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e4123975f257306440158659634c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a1c3fc74e44d9ff9afc7d81bd3310e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a978e57e8d08ca663f9ee2ca41184b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cf714ffb3fd5917a76b191640b55fe.png)
(2)求使两块地的总收益最大时,角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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2024-04-04更新
|
468次组卷
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7卷引用:江苏省扬州市邗江中学2023-2024学年高一下学期期中测试数学试题
江苏省扬州市邗江中学2023-2024学年高一下学期期中测试数学试题(已下线)模块五 专题3 全真能力测试1(高一人教B版期中)(已下线)模块三 专题2 解答题分类练 专题4 解三角形(解答题)(已下线)模块五 专题6 全真拔高模拟2(苏教版期中研习高一)浙江省海宁市第一中学2023-2024学年高一下学期阶段性测试(3月)数学试题江苏高一专题05解三角形(第二部分)(已下线)第九章:解三角形章末重点题型复习--同步精品课堂(人教B版2019必修第四册)
名校
10 . 已知函数
.
(1)讨论
的单调性;
(2)当
恒成立时,求
的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdbd96fac44a76334909df9074d1a97.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996d9e02187335faf7689f1611ab331f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9aa7d4c35ca378a4b765eda910d490.png)
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2024-04-03更新
|
720次组卷
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4卷引用:江苏省邗江中学2023-2024学年学年高二下学期期中考试数学试题