1 . “
数”在量子代数研究中发挥了重要作用.设
是非零实数,对任意
,定义“
数”
利用“
数”可定义“
阶乘”
和“
组合数”,即对任意
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95f14cc089b8615edde195eb449b48b.png)
(1)计算:
;
(2)证明:对于任意
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d17cd22aac1f1f0f8acb1d0b67bb2c7.png)
(3)证明:对于任意
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d774d4ac2fb5da679ac23e0dea64da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6724c68c4206bd95683998d800f7f676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d774d4ac2fb5da679ac23e0dea64da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dee336ed12a9b1b273d7fada509737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d774d4ac2fb5da679ac23e0dea64da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d774d4ac2fb5da679ac23e0dea64da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3361528cb2e9a12d35acc0381e12564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d774d4ac2fb5da679ac23e0dea64da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dba6a7ab114b2a921dd1099e90c8bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95f14cc089b8615edde195eb449b48b.png)
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d61962da2ebd6382d99cf5f1232c7de.png)
(2)证明:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110cb021ccb99d1a30025c66b026812b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d17cd22aac1f1f0f8acb1d0b67bb2c7.png)
(3)证明:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41228f0077b249a875e69698fefb2081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985b5678fd36804e1a28fac1c7a57982.png)
您最近一年使用:0次
2024-04-02更新
|
1212次组卷
|
2卷引用:山东省菏泽第一中学南京路校区2024届高三下学期开学考试数学试题
名校
2 . 定义:双曲余弦函数
,双曲正弦函数
.
(1)求函数
的最小值;
(2)若函数
在
上的最小值为
,求正实数
的值;
(3)求证:对任意实数
,关于
的方程
总有实根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64d8edcac9fb4dc0cdc8c952596b722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f45428262907786c0f71f8233820ce2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c7df0ad98bbe77abb2c33ca85ea0a3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e236b7c4a6651b7b88ae885b9ad3dddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3a6d011679952771607b3a166676b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f258ec6fed321bb9be780189249e6f.png)
您最近一年使用:0次
名校
3 . 已知点
、
,椭圆
:
与双曲线
:
有相同的焦点.
(1)求双曲线
的方程与离心率.
(2)点
为双曲线
的一部分
(
且
)上的动点,证明:存在过点P的双曲线
的切线等分
的面积(O为原点).
(3)设双曲线
的切线l与椭圆
交于C、D两点,求动弦
中点M的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f54dd475ff1321041c80738b201c3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cad955f235c6dc064b5cc814b8c0656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96848b9ec6c8d71adca5d8afa07582d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ba9b5b35d150c969383b464b9eb952.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ba9b5b35d150c969383b464b9eb952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06ba630c1ea702753cb6bbc8099aafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(3)设双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
名校
解题方法
4 . 若存在常数
、
,使得函数
对于
同时满足:
,
,则称函数
为“
”类函数.
(1)判断函数
是否为“
”类函数?如果是,写出一组
的值;如果不是,请说明理由;
(2)函数
是“
”类函数,且当
时,
.
①证明:
是周期函数,并求出
在
上的解析式;
②若
,
,求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/121706e56023722591922af58fd1dd79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5858dba99d7612311e93a49da16aaae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297c81c2628b05a8f67744ddf04e9851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb72ca96da578351e459f9ce3dbe44d.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1417a39c99b1e6b489c7c033a0625af.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc076c7f73dc9b6138bc40252cbbf22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2024-03-15更新
|
284次组卷
|
2卷引用:湖南省长沙市长郡中学2023-2024学年高一下学期寒假检测(开学考试)数学试题
5 . 对于数列
,记
,称数列
为数列
的一阶差分数列;记
,称数列
为数列
的二阶差分数列,…,一般地,对于
,记
,规定:
,称
为数列
的
阶差分数列.对于数列
,如果
(
为常数),则称数列
为
阶等差数列.
(1)数列
是否为
阶等差数列,如果是,求
值,如果不是,请说明为什么?
(2)请用
表示
,并归纳出表示
的正确结论(不要求证明);
(3)请你用(2)归纳的正确结论,证明:如果数列
为
阶等差数列,则其前
项和为
;
(4)某同学用大小一样的球堆积了一个“正三棱锥”,巧合用了2024个球.第1层有1个球,第2层有3个,第3层有6个球,…,每层都摆放成“正三角形”,从第2层起,每层“正三角形”的“边”都比上一层的“边”多1个球,问:这位同学共堆积了多少层?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa321950b10e074ed9636a2f45a1a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de1b87726fc455bda6b57a6bbf945370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ea6a77537d0cc290f38e2f6879d9e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bedc5708c3a0fd109a53174902fce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812e3f80ce9ee8d0bdba2d1b846e1fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c04a9e337665339e34c3874a2c5710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da0ba7c15a05f519d47b5eaf09c0a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff0dd5f1a1c9399cea2cc938964470d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc2d03374de76c9ba32b90436cd98b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a075be43e898d86fa07e9328978c8b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198cd4d7bf7a133fbc36aee884edf5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)请用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17243bec73e79bab1216123cc094eecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c932d437f90d874026f052d65a8402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)请你用(2)归纳的正确结论,证明:如果数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec08af85b4b2f52c85f449611a688d6d.png)
(4)某同学用大小一样的球堆积了一个“正三棱锥”,巧合用了2024个球.第1层有1个球,第2层有3个,第3层有6个球,…,每层都摆放成“正三角形”,从第2层起,每层“正三角形”的“边”都比上一层的“边”多1个球,问:这位同学共堆积了多少层?
您最近一年使用:0次
名校
解题方法
6 . 复数是由意大利米兰学者卡当在十六世纪首次引入,经过达朗贝尔、棣莫弗、欧拉、高斯等人的工作,此概念逐渐为数学家所接受.形如
的数称为复数,其中
称为实部,
称为虚部,i称为虚数单位,
.当
时,
为实数;当
且时,
为纯虚数.其中
,叫做复数
的模.设
,
,
,
,
,
,
如图,点
,复数
可用点
表示,这个建立了直角坐标系来表示复数的平面叫做复平面,
轴叫做实轴,
轴叫做虚轴.显然,实轴上的点都表示实数;除了原点外,虚轴上的点都表示纯虚数.按照这种表示方法,每一个复数,有复平面内唯一的一个点和它对应,反过来,复平面内的每一个点,有唯一的一个复数和它对应.一般地,任何一个复数
都可以表示成
的形式,即
,其中
为复数
的模,
叫做复数
的辐角,我们规定
范围内的辐角
的值为辐角的主值,记作
.
叫做复数
的三角形式.
,
,求
、
的三角形式;
(2)设复数
,
,其中
,求
;
(3)在
中,已知
、
、
为三个内角
的对应边.借助平面直角坐标系及阅读材料中所给复数相关内容,证明:
①
;
②
,
,
.
注意:使用复数以外的方法证明不给分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c0c72c17b74f9a5a175ec2b9d77e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c789a7cd7ac2b8b96dc879c6c8161ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fe68ea0bf368925909606949da47f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0bf9b2a7378e73e9fd06c693bfda07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368f9e12546277731776041c73dbe58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e80e5baee553150c67a91f1017a7be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6958203312cbda12fd2683a819dd9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e472aea001d179c284e3687a9aacf384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e472aea001d179c284e3687a9aacf384.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/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec45476379fb51aa1ef0a93f849f48be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e283f3168c0b5e8f68dda92c43651e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eec3e684af41f9ed4db5b931b9ccfb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f56cfb41ee7cb758fee138ab09e0d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec45476379fb51aa1ef0a93f849f48be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3665b2dac544bfb2a0c175f95a480e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b3a15906b84b98a3ac563e7e2ec9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
(2)设复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd87d6e1987cf95d102de1045d3722a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398d8980d3ec9fbf536a1efa6312a19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0492634f27279b6470798af0185be67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c723970ac738976e0130e1438b67058.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1501d4035822b34fcc2378f1e316f159.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63471f592531e46277365ed319e2acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923694c299d953e02cb79dfcef9f56a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ce2f54d69a5987c1de19da53342811.png)
注意:使用复数以外的方法证明不给分.
您最近一年使用:0次
2024-03-12更新
|
588次组卷
|
4卷引用:黑龙江省哈尔滨师范大学附属中学2023-2024学年高一下学期开学考试数学试卷
黑龙江省哈尔滨师范大学附属中学2023-2024学年高一下学期开学考试数学试卷重庆市缙云教育联盟2023-2024学年高一下学期3月月度质量检测数学试题(已下线)模块五 专题六 全真拔高模拟2(已下线)第七章:复数(新题型)-同步精品课堂(人教A版2019必修第二册)
名校
7 . 设
为正整数,集合
. 任取集合A中的
个元素(可以重复)
,
,
,
,其中
.
(1)若
,
,直接写出
;
(2)对于
,
,
,证明:
;
(3)对于某个正整数
,若集合A满足:对于A中任意
个元素
,都有
,则称集合A具有性质
. 证明:若
,集合A具有性质
,则
,集合A都具有性质
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ffdb6f5f778ef4042ebb34676a01d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da0b0e5b6a848ebf56dc9b322439516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e58913298f228485834ce1a2cdeba90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97565c23be7ddbaa8d5d0a79306b7802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b71876e8c49840f701497ef410cc604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52f8aaa7e6e6cff822f11234f76c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ab695c730d189001bc892560da77a4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4786f5726f9ea2fbec6989c316a8a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5d37f320c9735b578f7edf5735c696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc42f408e8973e0f39d09ba3c8d8bea7.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab46ece2bf2e8fd7155e0d5cb96a1300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f56b4669ea734f330fc1a0138e17a8.png)
(3)对于某个正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2def5aa62f497709e1bd8258583d62fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898ee117eaceffb2cdc39941f53d2d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a904c68cfc09c7702602d18d3fc555a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6291d7b91f71daa0b3c4fa02dc7a5ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899237334c87274dec572e039f5c9521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c619c428e95993872569147b7ea83cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b78297a65e7fad69635b19928ecc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6291d7b91f71daa0b3c4fa02dc7a5ea.png)
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8 . 已知
为抛物线
上的两点,
是边长为
的等边三角形,其中
为坐标原点.
(1)求
的方程.
(2)已知圆
的两条切线
,且
与
分别交于点
和
.
(i)证明:
为定值.
(ii)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6093eebca8f3ff82ce9298feb197e955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dac63b3d222a4cff8691da2d0d4489d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b717e5c29494c85955d5a80679ae71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4b833fb7dd03c34ac40c664cd8483d.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd5ff3cfc044f329cd7ae0296683454.png)
您最近一年使用:0次
9 . 由
个数排列成
行
列的数表称为
行
列的矩阵,简称
矩阵,也称为
阶方阵,记作:
其中
表示矩阵
中第
行第
列的数.已知三个
阶方阵分别为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ff7824ff4c2d54281baa128c63235d.png)
,
,其中
分别表示
中第
行第
列的数.若
,则称
是
生成的线性矩阵.
(1)已知
,若
是
生成的线性矩阵,且
,求
;
(2)已知
,矩阵
,矩阵
是
生成的线性矩阵,且
.
(i)求
;
(ii)已知数列
满足
,数列
满足
,数列
的前
项和记为
,是否存在正整数
,使
成立?若存在,求出所有的正整数对
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767f5a4746f04db68386fac3970b1ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767f5a4746f04db68386fac3970b1ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f2dee59acd8ba55c25c9f5316ed3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b540e0e8df1cc4f59180460e7d4264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ff7824ff4c2d54281baa128c63235d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39d394642b16525e70ecda2fd70cdb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0419a2c0acbb1af2d84373cca6d605a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d37e026f409868f81064617a4120e73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cbe82b97961a419f24e40bf54a1376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddff15b8d9a8b8f371670b3cba489b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03e28332446eea06a9bd61050d38373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c62349070fb07aaeffbb5d7d91289a9.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab241dfd5146035044bc35dcfb3e0994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647c97da671781944dcbac93af7cadcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64bb2b9e1f49aee4f4b91f0ba229fd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b7d9aa89f698d7ac2772dbf24a5a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647c97da671781944dcbac93af7cadcb.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4246c1e8163f564afaf51cec2352362e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ce6091ca3c6c454219a36f5396ccfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03e28332446eea06a9bd61050d38373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c62349070fb07aaeffbb5d7d91289a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d7859dc8659a974ea86d14b6ef18e6.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c07cbe067882d2f964195527ad1b33c.png)
(ii)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a8100f98999e472945ab7050af50d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7ffcaea39899aa3e4a17f9a5bc46f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd0bd4520a95ff89c01f5db5d0a0b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
您最近一年使用:0次
10 . 已知
在曲线
:
上,直线
交曲线
于
,
两点.
(1)当
不在直线
上时,试问
(
,
分别为
,
的斜率)是否为定值?若是,求出定值;若不是,请说明理由.
(2)若
为坐标原点,
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62f1c7592b6b9729acf150cfca0e457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc157c66eef6affd86e48432176c4240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626bd07f966ea26a51dcd8ceba04ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf32f4d595c02a8c0f7cc5f8fd0c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d718b208bce3e2778a466b2ed8d5312f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
您最近一年使用:0次