解题方法
1 . 已知复平面上的点
对应的复数
满足
,设点
的运动轨迹为
.点
对应的数是0.
(1)证明
是一个双曲线并求其离心率
;
(2)设
的右焦点为
,其长半轴长为
,点
到直线
的距离为
(点
在
的右支上),证明:
;
(3)设
的两条渐近线分别为
,过
分别作
的平行线
分别交
于点
,则平行四边形
的面积是否是定值?若是,求该定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d9e97f066db90a8b341f8bc1cc3443d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e58bf28d4fde2909e1018e870e70baa9.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dead5c5455fcbf21c809120dca4787.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a2df68b4bc2f1773ccc4d4590079cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9a1a2d4399061fc9d8921e22e1771e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b892bab45e209077e2ac309bcc6428.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3529e7875112e656eed532629c5d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3529e7875112e656eed532629c5d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224150f5b61706dc52b162d76ee5e285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9f59db2b6f4b68d28271c9727afc0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b5a39cff02408146d83d7704aa4d44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449b78bc33d57b2972713b6029f39c32.png)
您最近一年使用:0次
2 . 对于无穷数列
,我们称
(规定
)为无穷数列
的指数型母函数.无穷数列1,1,…,1,…的指数型母函数记为
,它具有性质
.
(1)证明:
;
(2)记
.证明:
(其中i为虚数单位);
(3)以函数
为指数型母函数生成数列
,
.其中
称为伯努利数.证明:
.且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4003dc23cc843e98aa97220e8d3a84d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c9f9424671c7e1620be104f3defa49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a6580231b1438c017a656f0a0fcc35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f59e9a69ab35dc4eb89904ec903f7e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a5e730877d3a07af9a7fb11e12e3ce.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68dddd478b94b9c21a5575a76b1dd51b.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cc30d1487ffbb3ae0dc8ad8cbd032f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee4a45607fc2a2e2316896ebd034bd0e.png)
(3)以函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b425361a8411f7d5fafdb625548e10e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed900c88cf1ca707255cd73398f6321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadf60fd2b3e31a83cb7ce708190b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b3e125cdfc173e4ef5a60f6cdc026d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8bb98fa13c7ec31472fca5a33ac80.png)
您最近一年使用:0次
2024-03-03更新
|
576次组卷
|
3卷引用:安徽省蚌埠市2024届高三下学期第三次教学质量检查数学试题
3 . 已知△
的三个内角
、
、
所对应的边分别为
、
、
,复数
,
,(其中
是虚数单位),且
.
(1)求证:
,并求边长
的值;
(2)判断△
的形状,并求当
时,角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/c5db41a1f31d6baee7c69990811edb9f.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/5a0bf9b2a7378e73e9fd06c693bfda07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2797017e76719c6487dc068b75ba6316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618bf05dc0d5107105990b4f179c153d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30efecee2afdad0e08cef68030d616e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)判断△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2018-12-30更新
|
504次组卷
|
2卷引用:2019年上海市长宁(嘉定)区高三上学期期末质量检测(一模)数学试题
名校
4 . 设复平面上点
对应的复数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb77d49f9e0b0d2e01c2258f493b3270.png)
(
为虚数单位)满足
,点
的轨迹方程为曲线
. 双曲线
:
与曲线
有共同焦点,倾斜角为
的直线
与双曲线
的两条渐近线的交点是
、
,
,
为坐标原点.
(1)求点
的轨迹方程
;
(2)求直线
的方程;
(3)设△PQR三个顶点在曲线
上,求证:当
是△PQR重心时,△PQR的面积是定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb77d49f9e0b0d2e01c2258f493b3270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93daf2cfc24f09c8474a14c9a5799cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2fd836eee4117616c00dff7a4068d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde71eaaba1444a7a965721162fa9195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/d3c16325e47c47fa58c4ac3b4c2c17b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)设△PQR三个顶点在曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2018-04-16更新
|
1085次组卷
|
4卷引用:上海市奉贤区2018届高三下学期调研测试(二模)数学试题
上海市奉贤区2018届高三下学期调研测试(二模)数学试题上海实验学校2022届高三冲刺模拟卷二数学试题上海市位育中学2021届高三下学期开学考试数学试题(已下线)考向30 复数-备战2022年高考数学一轮复习考点微专题(上海专用)