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解题方法
1 . 已知奇函数
在
处取得极大值2.
(1)求
的解析式;
(2)若
,使得
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb885b96ddbf9889de11e3339ca7704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15081beffb280af25c9d02bfe81da500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5d2bb58cebec830910c14fe0e794be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3卷引用:黑龙江省哈尔滨市第六中学2023-2024学年高二下学期期中考试数学试卷
黑龙江省哈尔滨市第六中学2023-2024学年高二下学期期中考试数学试卷黑龙江省哈尔滨市双城区兆麟中学2023-2024学年高二下学期第二次月考(6月)数学试题(已下线)专题09 导数与零点、不等式综合常考题型归类--高二期末考点大串讲(人教B版2019选择性必修第三册)
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2 . 某加盟连锁店总部对旗下600个加盟店中每个店的日销售额(单位:百元)进行了调查,如图是随机抽取的50个加盟店的日销售额的频率分布直方图.若将日销售额在
的加盟店评定为“四星级”加盟店,日销售额在
的加盟店评定为“五星级”加盟店.
(2)若该加盟连锁店总部旗下所有加盟店的日销售额
,其中
近似为(1)中的样本平均数,根据
的分布估计这600个加盟店中“五星级”加盟店的个数(结果精确到整数);(参考数据:若
,则
,
,
.)
(3)该加盟连锁店总部决定对样本中“四星级”及“五星级”加盟店进一步调研,现从这些加盟店中随机抽取3个,设
为抽取的“五星级”加盟店的个数,求
的概率分布列与数学期望.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2681d14091ebc0cbca6f1f0319b6f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4573cd4180755d1c3d597ef7937e50fb.png)
(2)若该加盟连锁店总部旗下所有加盟店的日销售额
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b519628534657aa24eec102d6318fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67802f8f03539d71c6b5c9b8d125c748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078df63aeb773d38d4bb320aedb87e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bea626e8575b294d741644e04fee0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d851580543e021a5ed81c322816f168b.png)
(3)该加盟连锁店总部决定对样本中“四星级”及“五星级”加盟店进一步调研,现从这些加盟店中随机抽取3个,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
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3 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)若
,
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369d1e726e6a939ea9fcf48003e4c5cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969053806521658b87fac05f76d2b4b2.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cffbfd5a0d17b083a66f2688b86fd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af9b0015e080097005b1fe2114f09ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca3b1f02a33e3370d59d60cf58682a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 已知
为正项数列
的前n项积,且
.
(1)证明:数列
是等比数列;
(2)若
,求
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c567a95fe6ee09e4774f64f52b116f.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d108a155642da837f7af5c44ad7e27e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4fe99ae7973f47829463638c2c4b563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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5 . 已知函数
,
.
(1)当
时,求函数
的单调区间;
(2)讨论函数
的单调性;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5dc617809444274cc8f5c1b51da4e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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6 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff155a45064c89405138dd0376c58644.png)
(1)当
时,求
在
处切线方程;
(2)若
在
恒成立,求
的取值范围;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff155a45064c89405138dd0376c58644.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab42740d8f095b5f7825d14c4c312096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9331d0d64b8f86ce6b75cc29805ff0.png)
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7 . 某食品厂为了检查一条自动包装流水线的生产情况,随机抽取该流水线上40件产品称出它们的质量(单位:克)作为样本数据,质量的分组区间为
,
,…,
.由此得到样本的频率分布直方图如图.
(2)在上述抽取的40件产品中任取2件,设X为质量超过505克的产品数量,求X的份布列和数学期望;
(3)从流水线上任取2件产品,设Y为质量超过505克的产品数量,求Y的分布列和方差.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016fa41b2704ccd94717d6becdf5bd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d95bc177a18de1051b670322dbcc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af559a48bee5759d8f583f7a3d13a25f.png)
(2)在上述抽取的40件产品中任取2件,设X为质量超过505克的产品数量,求X的份布列和数学期望;
(3)从流水线上任取2件产品,设Y为质量超过505克的产品数量,求Y的分布列和方差.
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8 . 已知
.
(1)求
的单调区间及极值;
(2)(i)
恒成立,求a的取值范围;
(ii)证明
时,
;
(3)
时,
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8830a1a93d3958583f63c4c89f73223a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
(ii)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c865fc7e9f9538b1391a6adbadb111bd.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
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解题方法
9 . 已知A,B分别是双曲线
的左、右顶点,P是C上异于A,B的一点,直线PA,PB的斜率分别为
,且
.
(1)求双曲线C的方程;
(2)已知过点
的直线
,交C的左,右两支于D,E两点(异于A,B).
(i)求m的取值范围;
(ii)设直线AD与直线BE交于点Q,求证:点Q在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28f20afd167fd4fd8cb1783bd79cce3.png)
(1)求双曲线C的方程;
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e32f16d75ccb62a04970f861827fca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f13a4dfa82ef9ca147570fd19fb94fc.png)
(i)求m的取值范围;
(ii)设直线AD与直线BE交于点Q,求证:点Q在定直线上.
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解题方法
10 . 四棱锥
中,
平面ABCD,底面ABCD是正方形,
,点E是棱PC上一点.
平面BDE;
(2)当E为PC中点时,求
所成二面角锐角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
(2)当E为PC中点时,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445b51117626fbd3373e32acc514c64b.png)
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