名校
1 . 在信息理论中,
和
是两个取值相同的离散型随机变量,分布列分别为:
,
,
,
,
,
.定义随机变量
的信息量
,
和
的“距离”
.
(1)若
,求
;
(2)已知发报台发出信号为0和1,接收台收到信号只有0和1.现发报台发出信号为0的概率为
,由于通信信号受到干扰,发出信号0接收台收到信号为0的概率为
,发出信号1接收台收到信号为1的概率为
.
(ⅰ)若接收台收到信号为0,求发报台发出信号为0的概率;(用
,
表示结果)
(ⅱ)记随机变量
和
分别为发出信号和收到信号,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08fcbcf19c6ca72cd66c201ef43f9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f4380cd57f824c5d9df1ca493cbd8cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe82ce73937d36166659f21492c825e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a870945a04cd86f2e0026fc53a2b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0e3b00fe47801afb53ec56706c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b4e8e7a49dbe86419e00672d1927c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd67429e1b0f56bc66a547fc9c6eed2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5633fa4fa8837dff506561b7943715fb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d0c830d39efe08dad4f2104325b8c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a8bb9552579e3cd3c7d693ce37b445.png)
(2)已知发报台发出信号为0和1,接收台收到信号只有0和1.现发报台发出信号为0的概率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c8578f06897aa6fb84aa95c797d3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d9b426bcc34a2cca2184dc1310f5e4.png)
(ⅰ)若接收台收到信号为0,求发报台发出信号为0的概率;(用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(ⅱ)记随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3719852c05eef71dd595791e3dc10de7.png)
您最近一年使用:0次
2024-06-14更新
|
649次组卷
|
4卷引用:海南省部分学校2024届高三考前押题考试(三模)数学试题
2 . 若有穷数列
满足:
,则称此数列具有性质
.
(1)若数列
具有性质
,求
的值;
(2)设数列
具有性质
,且
为奇数,当
时,存在正整数
,使得
,求证:数列
为等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef94592b70bea840c747393959c71b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c735a110f4cf68dea9133c78e205b43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf404363fe0f057007b8e8d90a775d90.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030ef2d631bb39945bb752932146364b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf404363fe0f057007b8e8d90a775d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9927f218d1b9cd9d7a8b979da6c669.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e6153f9e3bfe84d3a61f388c7fa2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd00e20f967cb2bdce939165abd38440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c87acdb6ce8286ea7d256b96801507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2024-06-04更新
|
341次组卷
|
2卷引用:海南省部分学校2024届新高考二卷押题卷(三)数学试题
名校
3 . 在计算机科学中,
维数组
是一种基础而重要的数据结构,它在各种编程语言中被广泛使用.对于
维数组
,定义
与
的差为
与
之间的距离为
.
(1)若
维数组
,证明:
;
(2)证明:对任意的数组
,有
;
(3)设集合
,若集合
中有
个
维数组,记
中所有两元素间的距离的平均值为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcb13ab18937e51cc842fa85defe2b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a5369bb892f707c3f0a2ac2fa18f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8373ec34bc1c49f29b672cec668a7189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab4a9bfa50054c808dd8190305d0abd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1d1f71b5aee622ad3bb731172aaac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5725a091f17274ae34890339ae7178c.png)
(2)证明:对任意的数组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2748d82571d4ba75ae1ebdfacc011a7a.png)
(3)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727a608a5ccb82aa87e46194fe7e2fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2ea5126ca30d68cc8b70f03860ba2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8e92f2312c156aa28806f810cc96d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3484a2499e9b47bd15e2cf721356798.png)
您最近一年使用:0次
解题方法
4 . 已知双曲线
的虚轴长为4,渐近线方程为
.
(1)求双曲线
的标准方程;
(2)过右焦点
的直线
与双曲线
的左、右两支分别交于点
,点
是线段
的中点,过点
且与
垂直的直线
交直线
于点
,点
满足
,求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10273b05ad8210d8db07639c4d149fd.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00859f623bed2d2f561765aadc6d34a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7571e2f20e482a852a5d4639480f6a5.png)
您最近一年使用:0次
2024-04-17更新
|
1093次组卷
|
2卷引用:海南省部分学校2024届新高考二卷押题卷(三)数学试题
5 . 若有穷数列
(
是正整数),满足
(
,且
,就称该数列为“
数列”.
(1)已知数列
是项数为7的
数列,且
成等比数列,
,试写出
的每一项;
(2)已知
是项数为
的
数列,且
构成首项为100,公差为
的等差数列,数列
的前
项和为
,则当
为何值时,
取到最大值?最大值为多少?
(3)对于给定的正整数
,试写出所有项数不超过
的
数列,使得
成为数列中的连续项;当
时,试求这些
数列的前2024项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22fc26a14e8e5987688565881fb71e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61fbe58f038432c468241d2771fb85d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e4bf506906957dc3bceb5fd3718514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a447e5baee4f7518706498d4aca7553b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfab6833cbc260b8482f13de6b05f35d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d734d660b7e9d5992ac95f31f9d9217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54f81fd86f64a74ef363086ada77d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394aee19f94c2b70fcce1d69b31dc7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2342d9276c99f962d3045ee8dab5a2d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2342d9276c99f962d3045ee8dab5a2d5.png)
(3)对于给定的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad491e5b5e14c49ef8b7004ebcfcef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6315a20e3ecd1768ae381e2a87610bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7f5bcbc1c51b653b25bc1e76763036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addee6ce5163a2580888ce2da22714af.png)
您最近一年使用:0次
2024-04-10更新
|
652次组卷
|
2卷引用:海南省琼海市嘉积中学2023-2024学年高三下学期一模考试数学试题
6 . 已知函数
,且
的图象在
处的切线斜率为2.
(1)求m;
(2)求
的单调区间;
(3)若
有两个不等的实根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f02ec33f2caccc63110feeef0ab275e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec25b105130d71d3d529524671b6218.png)
(1)求m;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70f5b3ed05b816949d8811d5956ae0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d4f5a04663e6ea4d0f183d27a6ba59.png)
您最近一年使用:0次
7 . 已知动点
与定点
的距离和
到定直线
的距离的比为常数
.其中
,且
,记点
的轨迹为曲线
.
(1)求
的方程,并说明轨迹的形状;
(2)设点
,若曲线
上两动点
均在
轴上方,
,且
与
相交于点
.
①当
时,求证:
的值及
的周长均为定值;
②当
时,记
的面积为
,其内切圆半径为
,试探究是否存在常数
,使得
恒成立?若存在,求
(用
表示);若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7a6fd6d651ae341154c2e40928d628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4988bd24f9af3f2b3c59aae61ca47ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0be44077d42cfffece905b1af13e000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d812643e080d4d447fab7fe2ae2646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d9712c3b25f3030e166e136d3a4686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240ed21d7e90d10088ad597fca655100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf2957b0a640070e941253e6d6d8be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba58e749d3c9f94abf0cc4743b8bc4e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207a808ffbeb016857125fbd530e0d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7091d529281abff275ef19b9197445a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00fdefb61da9119bdf6093ac2b9e7de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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7卷引用:海南省海南中学2024届高三第一次模拟数学试题
海南省海南中学2024届高三第一次模拟数学试题广东省深圳市2024届高三第一次调研考试数学试卷(已下线)黄金卷08(2024新题型)广东省广州市白云中学2023-2024学年高三下学期零模(3月月考)数学试题2024届河北省承德市部分高中二模数学试题河北省衡水市部分学校2024届高三下学期二模考试数学试题(已下线)数学(新高考卷02,新题型结构)
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8 . 已知函数
.
(1)当
时,讨论函数
的单调性;
(2)若函数
有两个零点
,
,且
,求证:
(其中
是自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebb9fac6533601d0c4ffcf0ca6f8251.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8aa5c24766744e194574d31ca534c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9219cb7f65bedd1fa387715a860ec623.png)
![](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/9516b75256c8a9b7d78392a60ddb1cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39e78987883d0d1a60a1f0d089a2b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
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5卷引用:海南省海口市海南中学2024届高三上学期第三次月考数学试题
海南省海口市海南中学2024届高三上学期第三次月考数学试题广东省广州市华南师大附中2024届高三上学期第二次调研数学试题(已下线)专题07 函数与导数常考压轴解答题(12大核心考点)(讲义)(已下线)第五章 导数及其应用 单元复习提升(4大易错与4大拓展)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第二册)(已下线)特训03 一元函数的导数及其应用 压轴题(七大母题型归纳)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
名校
9 . 已知
,
.
(1)求函数
的单调区间;
(2)①容易证明
对任意的
都成立,若点
的坐标为
,
、
为函数
图像上横坐标均大于1的不同两点,试证明:
;
②数列
满足
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8b8645a4cd5e41664b349bc1d2c4ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a20457d180264f78d611dc7893d735.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)①容易证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f662ae83689b19b2a4a9b37a3a9b70.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4b74ed1cf474f645df5ef7100c0d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3360833401d932ae800aefe4ae8f24.png)
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4卷引用:海南省海南中学2023届高三三模数学试题
10 . 已知a>0,圆C:
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec6c8011f0f9d3363d5de4d330763a5.png)
A.存在3个不同的a,使得圆C与x轴或y轴相切 |
B.存在2个不同的a,使得圆C在x轴和y轴上截得的线段相等 |
C.存在2个不同的a,使得圆C过坐标原点 |
D.存在唯一的a,使得圆C的面积被直线![]() |
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6卷引用:海南省海口市2022届高三下学期学生学科能力诊断数学试题
海南省海口市2022届高三下学期学生学科能力诊断数学试题广东省高州市2022届高三第二次模拟数学试题湖北省高中名校联盟2023届高三上学期第一次联合测评数学试题(已下线)考点19 直线和圆的方程-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)(已下线)江苏省南通市如皋市2022-2023学年高三上学期教学质量调研(一) 数学模拟试题广东省佛山市顺德区第一中学2022-2023学年高二上学期期末数学试题