解题方法
1 . 已知点
,动点
满足
,动点
的轨迹记为
.
(1)求
的方程;
(2)过点
的直线
与
交于
两点,
为坐标原点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eed5b1b5a80e66f5a6cd08be019376c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
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2 . 某工厂引进新的生产设备
,为对其进行评估,从设备
生产零件的流水线上随机抽取100件零件作为样本,测量其直径后,整理得到下表:
经计算,样本的平均值
,标准差
,以频率值作为概率的估计值.
(1)为评估设备
对原材料的利用情况,需要研究零件中某材料含量
和原料中的该材料含量
之间的相关关系,现取了8对观测值,求
与
的线性回归方程.
(2)为评判设备
生产零件的性能,从该设备加工的零件中任意抽取一件,记其直径为
,并根据以下不等式进行评判(
表示相应事件的概率);
①
;②
;③
.
评判规则为:若同时满足上述三个不等式,则设备等级为甲;仅满足其中两个,则等级为乙;若仅满足其中一个,则等级为丙;若全部不满足,则等级为丁,试判断设备
的性能等级.
(3)将直径小于等于
或直径大于
的零件认为是次品.从样本中随意抽取2件零件,再从设备
的生产流水线上随意抽取2件零件,计算其中次品总数
的数学期望
.
附:①对于一组数据
,其回归直线
的斜率和截距的最小二乘法估计公式分别为
,
;
②参考数据:
,
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
直径/mm | 58 | 59 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 73 | 合计 |
件数 | 1 | 1 | 3 | 5 | 6 | 19 | 33 | 18 | 4 | 4 | 2 | 1 | 2 | 1 | 100 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e29795871d00f4a61552b2d7a40dbd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d773d36e7e31ed5c3b3500479e65ad5.png)
(1)为评估设备
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)为评判设备
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd1a7cce84fee7009676cc4fddefb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5389262116bd3e86aa5da72cd0767a25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbe0e8c964bc70214cdfb1c03c57cad.png)
评判规则为:若同时满足上述三个不等式,则设备等级为甲;仅满足其中两个,则等级为乙;若仅满足其中一个,则等级为丙;若全部不满足,则等级为丁,试判断设备
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)将直径小于等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a233ddbcaf63af4efbcf36f952544d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc93a013f1965adededf7401eeebd92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71701db4b413f2364dbcbd612fbc8a67.png)
附:①对于一组数据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e640d02256c486c1d7344a4d07908c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db6103cb0f1d2bd6b19235d53ee7e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce18f3a1b3d9f84672a8bfbc67bccedb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ac59fd923e24e470058de31bdc30d2.png)
②参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140ae29ca82d66aeccafedfdca5a1a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c165beb52c8950acf86c2d331ddec10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcbec85eb80b58028c027f8a113781a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3a2c8273b3b630f3e74aa7f1f0737f.png)
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福建省漳州市东山第二中学2022-2023学年高二下学期期中数学试题江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(六)重庆缙云教育联盟2024届高三高考第一次诊断性检测数学试卷陕西省西安市西安南开高级中学2023-2024学年高二上学期期末考试数学试题(已下线)专题05 成对数据的统计分析压轴题(2)(已下线)第八章 成对数据的统计分析(压轴题专练)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第三册)(已下线)第9章 统计 章末题型归纳总结-【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)
3 . 已知定义在
上的函数
满足
,当
时,
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a28068770a85b88b42321cd71ecd3c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e6418f7cf018c9a78b40642c95e445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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4 . 椭圆曲线
是代数几何中一类重要的研究对象.已知椭圆曲线
,则
与
轴的交点个数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ ;若
,
与
轴交点的横坐标从小到大排列为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472de01f0f3341810d10356d23818c8a.png)
______ .(这里
,若
,则
;若
,则
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774fd0586382c7abc6f924cab186343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a23042aafa33d410aa68e417b99c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b880a04dc790edd18f1fe61caa655fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83590c4a7ea5636843dd4b60c67cb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472de01f0f3341810d10356d23818c8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00efe075d3d187df2613113c37e8aaec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6add34ccc6ad36b575fd7eb1f4e02f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f998e30a93b68469a296762c20a31248.png)
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5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ede71f6773d1fd88e6f583641943a41.png)
(1)讨论函数
在
上的单调性;
(2)若函数
在
上单调递减,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ede71f6773d1fd88e6f583641943a41.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7754cc9374c8193dadb6875fb8a3fefb.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa9703ec798c45f7fe00322ab6c2196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7754cc9374c8193dadb6875fb8a3fefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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6 . 已知
为偶函数、
为奇函数,且满足
.
(1)求
,
;
(2)若方程
有解,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29925bded1fc96687f14cc410cb6b037.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae7e907e614b9ec381c5d04700b9cd1.png)
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7 . 已知函数
.
(1)若曲线
在点
处的切线方程为
,判断当
时函数
的单调性;
(2)当
时,
在
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fd000bf59e5c44745b7b7690e9bb9f.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc9291a3acea831b82b8c94be02c2ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd6b7f2585d3a716e3b2c62dd713872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27794407a3d82a6746f7e0871051f486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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8 . “双11”期间,某商场进行如下的优惠促销活动:
优惠方案1:一次购买商品的价格,每满60元立减5元;
优惠方案2:在优惠1之后,再每满400元立减40元.
例如,一次购买商品的价格为150元,则实际支付额
=140元,其中[x]表示不大于x的最大整数.又如,一次购买商品的价格为810元,则实际支付额
13
40=705元.
(1)小芳计划在该商场购买两件价格分别是250元和650元的商品,她是分两次支付好,还是一次支付好?请说明理由;
(2)已知某商品是小芳常用必需品,其价格为30元/件,小芳趁商场促销,想多购买几件该商品,其预算不超过500元,试求她应购买多少件该商品,才能使其平均价格最低?最低平均价格是多少?
优惠方案1:一次购买商品的价格,每满60元立减5元;
优惠方案2:在优惠1之后,再每满400元立减40元.
例如,一次购买商品的价格为150元,则实际支付额
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4174fe812bebfe2876316c0588aa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdfdbf284e8cc6975803d0f62b95c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
(1)小芳计划在该商场购买两件价格分别是250元和650元的商品,她是分两次支付好,还是一次支付好?请说明理由;
(2)已知某商品是小芳常用必需品,其价格为30元/件,小芳趁商场促销,想多购买几件该商品,其预算不超过500元,试求她应购买多少件该商品,才能使其平均价格最低?最低平均价格是多少?
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9 . 设区间A是函数
定义域的一个子集,若存在
,使得
成立,则称
是
的一个“不动点”,也称
在区间A上存在“不动点”,例如
的“不动点”满足
,即
的“不动点”是
.
(1)若函数
有两个互为相反数的“不动点”,求实数a的值:
(2)若函数
在区间
上不存在 “不动点”,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4994b0dae849313166b4dc20049a8650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9852d7433cf82fb187fcb796eb6d98d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f74f76d8f930f3086843afe7911f537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51969fc1a8030cef11cab59267689e89.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b1eccb247386eb3469132edb2d97d6.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97f3f5b347190dd09ed50b3d28d4de2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
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10 . 已知函数
是定义域上的奇函数,且
.
(1)求函数
的解析式;
(2)设函数
,若
在
上有两个零点,求实数m的取值范围;
(3)设函数
,若对
,
,都有
,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721398b542fe8c6c1c038e9a7e83249c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a0169e37472db54391a8d175f8b2de.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b946a8ec829a341aa6806a3eb0b9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a713b0161d9c1a679a3e03af814f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11554e512157241da0d8d284929c7ec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af0b9aebc3254313dcab06eae3534ef.png)
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2023-12-20更新
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2卷引用:福建省福州市闽侯县第一中学2023-2024学年高一上学期第二次月考数学试题