名校
1 . 设
,函数
,
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ;
②若函数
有且仅有两个零点,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c33e2014cceb8a6c677abad0ee5574d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d002d8423808d081345bdac6c25f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e2f18416dc95cf10b11e69d7cc6783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 如果方程
所对应的曲线与函数
的图象完全重合,则如下结论正确的个数( )
①函数
是偶函数;
②
的图象上的点到坐标原点距离的最小值为1;
③函数
的值域为
;
④函数
有且只有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7352d1dc64802633b0409f6ff302ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c36c3781d5caf82f3749cd503d23ad6.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c534e240759d180cfd6aec100e501edd.png)
A.1 | B.2 | C.3 | D.4 |
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3 . 函数
.其中P,M为实数集
的两个非空子集,又规定
,
.下列四个判断其中正确的是( )
①若
,则
;
②若
,则
;
③若
,则
;
④若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f326407ffb7641e1f5928e54c1c4f99a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b766cf8a990d4429ada7ecf954233917.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6feeba738e1ad8d5bbbc7fd7f774c029.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5eb03e97d9498bff9c3dfac271dad01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16b75d6c240d02859c0a47fddfd7b11.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d64e5e7e66987afd98306a6c90f65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fceff3efce99072365ce50f3646be9e.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4137a15824dd97bbbffb2fa5ecf9bf18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a12a56671828ae5f946d0638c7f0739.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a437e27523e4d70b021df116d774a926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ee349ead1b5088f7c685a765498171.png)
A.①③ | B.②③ | C.②④ | D.①④ |
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名校
4 . 已知集合
.给定一个函数
,定义集合
,若
对任意的
成立,则称该函数
具有性质“
”.给出下列函数:①
;②
;③
;④
其中具有性质“
”的函数的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5d1aa4cc6d7420da507e3f32808d6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0500974fa4ff5245dc7516e96410d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e847907fda445c04edd732d1b77acc88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b629bea8e22de9bfc49158e2289871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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解题方法
5 . 对于空间向量
,定义
,其中
表示x,y,z这三个数的最大值.
(1)已知
,
.
①直接写出
和
(用含
的式子表示);
②当
,写出
的最小值及此时
的值;
(2)设
,
,求证:
;
(3)在空间直角坐标系
中,
,
,
,点Q是
内部的动点,直接写出
的最小值(无需解答过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b303ef66609858e8ab234b6dabccba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e382f70d741ee01c165391ce980155d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4461408813c1476a8a8073c83b8989.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23056c429159c0198f865ff11972d8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e17d2355419564f6d9737295412b58c.png)
①直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9873960d64934875139754efbdfe951d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af5f843689a63bc176c2d2171b6a1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53168695826b0a33a23067b76173c7e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780ef5119f58f853ce9dd2b9176ffdde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778ae4468d857c229073875e0ee0ce31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6772fa3937b97d9ec3aec1ea2ea143b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95086cc97ef93f5166489b3bc47e1911.png)
(3)在空间直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b32ab04dd852329d5918b177c199eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee736aec4313d04a5921ed7e5800b3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d04a00e46c1ffb335f73506041c66dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084fc7655647b596d07e80269d086e5a.png)
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23-24高三上·北京·期中
名校
6 . 已知
,若实数
,则
在区间
上的最大值的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b62271358df0edc9a22635e3fafecc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae16b8d4ca61fc29075c6e6968255bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf0e0cb1af4509966c57b99fe1d6ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91b3592e2dce9cc8639ca9d30e12bf5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 设
,如果函数
:
的值域也是
,则称之为一个泛函数,并定义其迭代函数列
:
,
.
(1)请用列表法补全如下函数列;
(2)求证:对任意一个
,存在正整数
(
是与
有关的一个数),使得
;
(3)类比排序不等式:
,
,把
中的10个元素按顺序排成一列记为
,使得10项数列
:
,
,
,…,
的所有项和
最小,并计算出最小值
及此时对应的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0367345901c5a716dca179385158c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84315a088ff3d8b91be22d3b3fcd92ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99442281052744a6b74b32e0fc2536f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66a88cbaed58dcf9671ba9240359b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b2c1a76a73797e9d5699f6c9929a50.png)
(1)请用列表法补全如下函数列;
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
2 | 1 | 7 | 5 | 3 | 4 | 9 | 10 | |||
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002bda38860f9cbc17dd7b6a03cfecf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d5926ad4ccd91c0ec7ff14018de8b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5328785361a76b5e8f75b034a07c5e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b526c87ad796e8cd189f88c33c8d8fd.png)
(3)类比排序不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0109ae0739494164db5b7edae7bfb2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd643dcc6985a78b5dfe3127610e920e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eee7088c883282e2f7d95a1856902fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87139b2d092ad22a082bd2a9fa31901d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4aac3646575e397de3dee4ed5d1060b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f27bc508f582e07211ee24d01bc551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e77ac9dd1c3046137614c0f62e55190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd643dcc6985a78b5dfe3127610e920e.png)
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解题方法
8 . 已知函数
,
,
.设集合
,若
中的所有点围成的平面区域的面积为
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5749bb82edfb623c63ae4ec6b4d43da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77156221148913fb706a2d57d9b9100c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9c88f70db94bdfa3be83eaa17f3e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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解题方法
9 . 已知函数
.若存在
,对于任意的
,
,则a的一个取值可以是______ ;满足条件的a值共有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afc17028d1394d4520540aaea9f85a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533399d365ace8a627f7c81d10d83a53.png)
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解题方法
10 . 设
,函数
,给出下列四个结论:
①当
时,
在
上单调递增;
②当
时,
存在最大值;
③设
,
,则
;
④若
,
的函数图象有三个公共点,则a的取值范围是
.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca51a3b757ecb5fb52b7477df429565.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c8843d87de0eef59bdca6fe1b65f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b74abf1169fec00154c184f59b0e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55267a7fadc62900f726481d0ccff808.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
其中所有正确结论的序号是
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