名校
1 . 已知函数
,点
、
是函数
图象上不同的两个点,设
为坐标原点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541ec913428703d4cae2476b147ce1a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63711c480473cbc27a06cdb82ddd000.png)
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2 . 已知函数
且
.若存在
,使得不等式
对于任意的
恒成立,求实数
的最小值为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c5dad340991112758226fd3b5dc1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308c33e7a29c84cbad2252e44f6acb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd73b03919e2cd703417b4c3c1fe281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ea47220258260d54537f7b5b4be915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 棱长为
的正方体
中,
为棱
的中点,
为正方形
内一个动点(包括边界),且
平面
,则当三棱锥
体积取最大时,其外接球的表面积为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a73120cd0988eb4a63436e7a4b9470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ea211a573491409cb60f9fbe9a65cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640aa89f8c302356d2dfe5ccf7c054b0.png)
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解题方法
4 . 在
中,点
,
分别在边
和边
上,且
,
,
交
于点
,设
,
.用
,
表示
为__________ ;若
为
上一动点且
,则
的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188c4084d1cfff4f1328e24b7621f98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fbc3a1f1e848cf1349b9327be8607d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20cbdfe479954ba2bc33142bc931c33.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471ac0f42d01c6d6e094b63628586e4d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81cef66ee751c4400eda062b694958f.png)
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5 . 对于没有重复数据的样本
、
、…、
,记这m个数的第k百分位数为
.若
不在这组数据中,且在区间
中的数据有且只有5个,则m的所有可能值组成的集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad7f66c97bfce4c00c53d86700c961b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a76ca140172ecba82a7ec84c7a9d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621649c6156ae32223bb79da9fbf959c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110f64c0aa40f7455a016edd0dbb8ea1.png)
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6 . 如图,在矩形ABCD中,E是AB上一点,连接DE,将
沿DE翻折,恰好使点A落在BC边的中点F处,在DF上取点O,以O为圆心,OF长为半径作半圆与CD相切于点G.若
,则图中阴影部分的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
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7 . 对于任意不为0的实数
定义一种新运算“#”:①
;②
,则关于
的方程
的根为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc9b449710062494286a01537ecdc00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d785aaa5c1be4b5728cf56b4727d7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/820023f3de39dffe868be95757ce76d2.png)
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名校
解题方法
8 . 已知点
,动点A在圆M:
上运动,线段AN的垂直平分线交AM于P点,则P的轨迹方程为______ ;若动点Q在圆
上运动,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e258dc5c8b4ea30bca80a56098065402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7087fd4f638a63704624fbec6e67b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d30337ed2f68b73a050688566eac4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
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9 . 牛顿选代法又称牛顿——拉夫逊方法,它是牛顿在17世纪提出的一种在实数集上近似求解方程根的一种方法.具体步骤如下图示:设r是函数
的一个零点,任意选取
作为r的初始近似值,在点
作曲线
的切线
,设与
轴x交点的横坐标为
,并称
为r的1次近似值;在点
作曲线
的切线
,设与
轴x交点的横坐标为
,称
为r的2次近似值.一般地,在点
作曲线
的切线
,记
与x轴交点的横坐标为
,并称
为r的
次近似值.设
的零点为r,取
,则r的1次近似值为______ ;若
为r的n次近似值,设
,
,数列
的前n项积为
.若任意
,
恒成立,则整数
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24a2c53e3b0b1c08803e95419f909d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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10 . 已知
,且
,若
,且
,则正整数
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da32adb27f0b1165ff54ae424d3e8b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6941c343e7d71a66146dc40bf148c9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e46773d78620bb2abe768647839649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dcdc12243229c38d59daec142c4d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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