名校
解题方法
1 . 已知函数
.
(1)讨论
的极值;
(2)若
,
为整数,且当
时,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2942418d8b05c9a5360266f595672e16.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8771f729445a0b5cfd4ee4a898ec90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 已知
,
,
,则
,
,
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28cf713695734084adadb0cf0cc40af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b529da6d1615e3f06eac5abfc75713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7511d359026d8d6b15fd5e9ea2d69b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 学生的安全是关乎千家万户的大事,对学生进行安全教育是学校教育的一个重要方面.临近暑假,某市教体局针对当前的实际情况,组织各学校进行安全教育,并进行了安全知识和意识的测试,满分100分,成绩不低于60分为合格,否则为不合格.为了解安全教育的成效,随机抽查了辖区内某校180名学生的测试成绩,将统计结果制作成如图所示的频率分布直方图.
内的女生人数分别为
,完成
列联表,根据小概率值
的独立性检验,能否认为测试成绩与性别有关联?
(2)若对抽查学生的测试成绩进行量化转换,“合格”记5分,“不合格”记0分.按比例分配的分层随机抽样的方法从“合格”与“不合格”的学生中随机选取10人进行座谈,再从这10人中任选4人,记所选4人的量化总分为
,求
的分布列和数学期望.
附:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada365bdb9ea17d57c7bfcc033601e50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35be810816a3563353a1058fd411c676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead9d6ff51996f3ebace6f212e11a9e4.png)
不合格 | 合格 | 合计 | |
男生 | |||
女生 | |||
合计 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
附:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f503f0dec4cf2cc95ad9521c5eaf9f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356b05e46b10ee51c3e43546d73ec96c.png)
![]() | 0.1 | 0.05 | 0.005 |
![]() | 2.706 | 3.841 | 7.879 |
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解题方法
4 . 若
的最小值是4,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9320b3402df781cf7cf789ec398fb4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.6或![]() | B.![]() |
C.6或18 | D.![]() ![]() |
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解题方法
5 . 已知
,直线
与
的交点
在圆
:
上,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c315f1b956827fa56c9edb912c51214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099894b25bc69741c7c5a0e443b3ac7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c1c1d3859045e855867090ca66a19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知函数
,若
且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d672d0d8b0849975a427700acb49b424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f542520ba0291df95622b84c697ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d8442c7566625949037a561849d111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.11 | B.5 | C.9 | D.7 |
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7 . 已知向量
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e006532171d56180cf56bb4538cf2e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3551e9998e13f08a21bee1e2cefa5e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4050405a080d42feba60bcd99f787cf.png)
A.若![]() ![]() |
B.![]() ![]() ![]() |
C.存在![]() ![]() ![]() |
D.![]() ![]() |
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8 . 已知函数
.
(1)求曲线
过点
的切线方程;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70b28490c815ca8350dddada76cc5e1a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/528ec81b2cb03098c0ecb5bf9ca0675b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
名校
解题方法
9 . A、B是一个随机试验中的两个事件,且
,则下列错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da8f6f5e3b9e86ba0348397a791fc3a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知数列
的通项公式为
,在
与
中插入
个数,使这
个数组成一个公差为
的等差数列,记数列
的前
项和为
,
(1)求
的通项公式及
;
(2)设
,
为数列
的前
项和,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80c1ed7b10ac7ca1cd81cdd39a8fcc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a2150c288b258addb66ae22ae818de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9acc937f669c8c7378303432f76aa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6469fad168bbcdf117f29fdbe26c51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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4卷引用:江西省南昌市第十九中学2023-2024学年高二下学期5月期中考试数学试题
江西省南昌市第十九中学2023-2024学年高二下学期5月期中考试数学试题湖北省武汉市第十一中学2023-2024学年高二下学期6月考数学试题(已下线)专题07 数列通项公式与数列求和--高二期末考点大串讲(人教B版2019选择性必修第三册)四川省泸州市龙马潭区2023-2024学年高二下学期6月期末考试数学试题