1 . 对于任意给定的四个实数
,
,
,
,我们定义方阵
,方阵
对应的行列式记为
,且
,方阵
与任意方阵
的乘法运算定义如下:
,其中方阵
,且
.设
,
,
.
(1)证明:
.
(2)若方阵
,
满足
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e84c30444f13d37ada78285dc4f83b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e76d1d8e50dda4d50229a8a20c57e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc29ee719feeedfbc8c529cf11348abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e11a5b70e1e2e685d1783a4707872e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ec97af19b15cd584710a3faf30c716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f44b167b4e75af29a18637f71f3ebfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b39fcc210ec89dbc7d684a70a34542c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d17ebf9f595cdb9dab841dec703b512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a4ed514630bd37fab9765b3fb5f2cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709d09c76c222f156df31a1bba5f2ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e4a35eca00ea2f4580d62515d54d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95035eeae686e910be45f08093e406c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e7d309cb178b71c6e56f5b7f610413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109b4ece615b08a89a7f69d436f448b0.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb109c49695bce8c5b5cf4fad95772.png)
(2)若方阵
![](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/2221c60bc15c59fa1b3ac74a23b57cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90fa9bfe3bf3e3b7265da3c49d31f1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35536fb98d8b24cead230c8df95fd9d3.png)
您最近一年使用:0次
2024-06-13更新
|
159次组卷
|
3卷引用:贵州省部分学校2024届高三下学期联考数学试卷
2 . 若给定一个数列
,其连续两项之差构成一个新数列:
,
,
,…,
,…,这个数列称为原数列
的“一阶差数列”,记为
,其中
.再由
的连续两项的差得到新数列
,
,
,…,
,…,此数列称为原数列
的“二阶差数列”,记为
,其中
.以此类推,可得到
的“p阶差数列”.如果数列
的“p阶差数列”是非零常数数列,则称
为“p阶等差数列”.
(1)证明由完全立方数
组成的数列
是“3阶等差数列”;
(2)若
(
且
,
),证明数列
是“k阶等差数列”,并且若将
的“k阶差数列”记作
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe164d8a8a4049e01565b576007651de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01416ee1d48b17f889e444b7eda99740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffdd0f523e96587d0e42d41151a3f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fcde3a21ad686b1befcaefea2b6f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5653b60d16ec4e653518f0562680250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45aec1e4ca31a14444f4bc8682ab5d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085a37c2996e097b38235498876dadbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50a9f25dce1e2d1cb2858964e46b70c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a236ab883a88dc0d034f3ad6c0e4adfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703cdc7668aa4dcab77e448249f9446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)证明由完全立方数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b0d016a383115a90050f6af28b22bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c11de1cc7764942724e0d08a826a294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835c74bbb8c61dd2d2f008664a8c8810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232d1ce3ad14256b1543e6007ff1675d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3f801c87c837385eca80c706e8adae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f6c0bb6318dd2a8c33bd76697bce874.png)
您最近一年使用:0次
3 . 一般地,
个有序实数
,
,
,
组成的数组,称为
维向量,记为
.类似二维向量,对于
维向量,也可以定义向量的加法运算、减法运算、数乘运算、数量积运算、向量的长度(模)、两点间的距离等,如
,则
;若存在不全为零的
个实数
,
,
,
使得
,则向量组
,
,
,
是线性相关的向量组,否则,说向量组
,
,
,
是线性无关的.
(1)判断向量组
,
,
是否线性相关?
(2)若
,
,
,当
且
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3f9a726dcb269c73e7ac85b8731984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b73c051cf7483f480eea23d7a0240d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e7f7030526d65d5fff785d0d35a6ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835f8af39ef5d6fa1f9627d82208a500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f062e5f6a6f052da1607c84add1bcfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d344174267f996c7cefecfd6985d380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e900404ba71110c5861ced9634646f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707707a426109dd5a5c7dda7bc3e0b21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d344174267f996c7cefecfd6985d380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e900404ba71110c5861ced9634646f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707707a426109dd5a5c7dda7bc3e0b21.png)
(1)判断向量组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b1e387365f75b288a6fb0ed35bcf00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5e34e20d6d95c15c69b529c9bcf020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3252c2f9e4bdde79725cb95ec5bed1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c49e107a51447339b6b46403006ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541e541ef98215381bb9120cd39020ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec181f4d57ff5967e94c36ffa4b9b52f.png)
您最近一年使用:0次
名校
解题方法
4 . 英国数学家泰勒发现了如下公式:
其中
为自然对数的底数,
.以上公式称为泰勒公式.设
,根据以上信息,并结合高中所学的数学知识,解决如下问题.
(1)证明:
;
(2)设
,证明:
;
(3)设
,若
是
的极小值点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf4a87ad1e9742f47b0c5b44b8dfab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6696028290bbaddf628d64bad0ed95b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2976d45a26ec77149a05553e8eb13efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78478b44ff22e088fd8e6522c5d78a2.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d84ae7f43ef85da907d2917ff5f2a80.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8586154d8c4fb5fef893d39a7701f921.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde823e2e88ecb6045d66d61962259b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-03-03更新
|
2365次组卷
|
19卷引用:贵州省贵阳市2024届高三下学期适应性考试数学试卷(一)
贵州省贵阳市2024届高三下学期适应性考试数学试卷(一)贵州省安顺市2024届高三下学期模拟考试(一)数学试卷福建省宁德市古田县第一中学2024届高中毕业班高考前适应性测试数学试题云南省玉溪市第一中学2023-2024学年高二下学期3月月考数学试题海南省海南华侨中学2023-2024学年高三下学期第二次模拟考试数学试题重庆市礼嘉中学2023-2024学年高二下学期第一次月考数学试题吉林省通化市梅河口市第五中学2023-2024学年高二下学期第一次月考数学试题重庆第十一中学校2023-2024学年高二下学期3月月考数学试题重庆市璧山中学校2023-2024学年高二下学期第一次月考数学试题广东省东莞市光明中学2023-2024学年高二下学期第一次月考数学试题四川省达州外国语学校2023-2024学年高二下学期3月月考数学试题黑龙江省哈尔滨市双城区兆麟中学2023-2024学年高二下学期第一次月考(4月)数学试题重庆市荣昌中学校2023-2024学年高二下学期4月期中考试数学试题广东省广州市广州中学2023-2024学年高二下学期期中考试数学试题江西省宜春市上高二中2024届高三下学期5月月考数学试卷(已下线)专题11 利用泰勒展开式证明不等式【练】河北省石家庄四十一中2023-2024学年高二下学期第一次月考数学试题河北省石家庄二中润德中学2023-2024学年高二下学期第一次月考数学试题四川省南充市白塔中学2023-2024学年高二下学期期中考试数学试题
名校
5 . 甲乙两人组成“星队”参加猜成语活动,每轮活动由甲乙各猜一个成语,已知甲、乙第一轮猜对的概率都为
.甲如果第
轮猜对,则他第
轮也猜对的概率为
,如果第k轮猜错,则他第
轮也猜错的概率为
;乙如果第k轮猜对,则他第
轮也猜对的概率为
,如果第k轮猜错,则他第
轮也猜错的概率为
.在每轮活动中,甲乙猜对与否互不影响.
(1)若前两轮活动中第二轮甲乙都猜对成语,求两人第一轮也都猜对成语的概率;
(2)若一条信息有
种可能的情形且各种情形互斥,每种情形发生的概率分别为
,
,
,
,则称
为该条信息的信息熵(单位为比特),用于量度该条信息的复杂程度.试求甲乙两人在第二轮活动中猜对成语的个数X的信息熵H;
(3)如果“星队”在每一轮中活动至少有一人猜对成语,游戏就可以一直进行下去,直到他们都猜错为止.设停止游戏时“星队”进行了Y轮游戏,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7afca687bf22f9b89ec7796c8002408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
(1)若前两轮活动中第二轮甲乙都猜对成语,求两人第一轮也都猜对成语的概率;
(2)若一条信息有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d52b758623159a27df432f7ff5ba0ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67aad21c60554e9f15ce9d69d0ce2368.png)
(3)如果“星队”在每一轮中活动至少有一人猜对成语,游戏就可以一直进行下去,直到他们都猜错为止.设停止游戏时“星队”进行了Y轮游戏,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00822059b045f3167843aaa84167e31e.png)
您最近一年使用:0次
2024-04-10更新
|
977次组卷
|
3卷引用:2024届贵州省贵阳市高三下学期适应性考试数学试题
解题方法
6 . 三等分角大约是在公元前五世纪由古希腊人提出来的,它和“立方倍积问题”“化圆为方问题”并称为“古代三大几何难题”.公元六世纪时,数学家帕普斯曾证明用一固定的双曲线可以解决“三等分角问题”.某同学在学习过程中,借用帕普斯的研究,使某锐角
的顶点与坐标原点
重合,点
在第四象限,且点
在双曲线
的一条渐近线上,而
与
在第一象限内交于点
.以点
为圆心,
为半径的圆与
在第四象限内交于点
,设
的中点为
,则
.若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20b5646427bee93f9d0542f91f374b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a58f9947538051854639fb05d876d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ed200cdcec3e0461dc5974f7d3f8d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bca735ba25c34964d96a4923cf797a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
7 . 设
,已知函数
的最小值为2.
(1)求证:
;
(2)
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1f328fcd670bfd11fa568abdf7f6c4.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0d5bfaa7081b3b1c81757f7846aa12.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea7936ad4048b3fc87a81d5469ec33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2f9e3626172458e0d541aefb6bc9b1.png)
您最近一年使用:0次
2023-04-10更新
|
419次组卷
|
3卷引用:贵州省普通高等学校招生2023届高三适应性测试数学(理)试题
8 . 已知坐标原点为O,直角三角形AOB的顶点A在椭圆
上运动,顶点B在直线
上运动.
(1)求证:坐标原点O到斜边AB所在直线的距离是常数.
(2)求斜边AB的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddab7b8aa22e1ba4c59da7dc04ac9e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72a5190834f5dbe895596656c038b3.png)
(1)求证:坐标原点O到斜边AB所在直线的距离是常数.
(2)求斜边AB的最小值.
您最近一年使用:0次
2022-05-13更新
|
231次组卷
|
2卷引用:贵州省贵阳市第六中学2022届高三一模数学(文)试题
名校
解题方法
9 . 已知
,且
.
(1)解关于
的不等式:
;
(2)求证:对任意
恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976738081afc41550f88aca83861c1b4.png)
(2)求证:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8deae40c582f0759f3d01acb1c0c6c.png)
您最近一年使用:0次
2023-03-30更新
|
336次组卷
|
3卷引用:贵州省2023届高三考前备考指导解压卷数学(理)试题
名校
解题方法
10 . 已知直线
与曲线
的两个公共点之间的距离为
.
(1)求C的方程.
(2)设P为C的准线上一点,过P作C的两条切线,切点为A,B,直线
的斜率分别为
,
,且直线
与y轴分别交于M,N两点,直线
的斜率为
.证明:
为定值,且
成等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e1238ecbd621b0611e5bd5fc7eb5ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee05b3210c8964deef8ff771173d288.png)
(1)求C的方程.
(2)设P为C的准线上一点,过P作C的两条切线,切点为A,B,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916d1dcf37d56ae470b16c0aa752ce3.png)
您最近一年使用:0次
2022-03-09更新
|
1287次组卷
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7卷引用:贵州省黔东南州2022届高三一模考试数学(理)试题
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