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1 . 若复数z满足方程:
(
为虚数单位),求复数z
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81be96448e060c222e389ec7778a1d46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
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2019-12-09更新
|
166次组卷
|
2卷引用:上海市浦东新区2017-2018学年高二下学期期中数学试题
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2 . 实数x取什么值时,复数
(i为虚数单位)
(1)是实数?
(2)对应的点位于复平面的第二象限?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d52e012017542c69395070b98a849d24.png)
(1)是实数?
(2)对应的点位于复平面的第二象限?
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2020-01-12更新
|
118次组卷
|
2卷引用:上海市建平中学2016-2017学年高二下学期期中数学试题
3 . 已知复数
满足
,
(1)求证:
为定值;
(2)设
,
,若
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcc78b50e4eb2ef6076b0ef4fab732d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1310103b6935bc992ac30b00cda97adf.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b49230293fc7eda13ab280119d6b1ad.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff2707254692b4ab7faca11828f93d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b601de9915320fa77de042dbaa08534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3db7332ccd03b5feeda9af8186677b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a09adbb736002c9c2022f83d55600cd.png)
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4 . 已知下列两个命题:命题p:实系数一元二次方程
有虚根;命题q:关于x的方程:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77604dfb9e0e2e3b86e3b265d1e9b960.png)
的两个虚根的模的和不大于
.若p、q均为真命题.求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19cc475eff68769514051b27b013956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77604dfb9e0e2e3b86e3b265d1e9b960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f79b8690c922e042e422cda331fbdfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
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5 . 已知复数
,
.
(1)比较
与
的大小;
(2)判断复数
在复平面上所对应的点
与圆
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d3c461d451e9973b1b2e98f5612b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6fa2a40d506a628ed8b5a811f012f91.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8b3f66119c2ce542984d12eb2b6b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dff9388eee5c812d183b254d13f461b.png)
(2)判断复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e2870b1ece2c9ac2157a9b5c5479a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439d1b2ec181dfdebddd8bc7b2a490de.png)
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6 . 设
,关于
的方程
的两个根分别是
和
.
(1)当
时,求
与
的值;
(2)当
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f6f8a5cdb8f408ba2f1bd7ab8b5c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43e49552a5099a8b2a442247c65a243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde24f9d7eb3e4ae2e5c50be14015330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9bb5cfcfc3f47fe0f1a45a3ebe9ba3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87026a2776be77f39bd5168c36127ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4d8aa2426b3dd449362903ad6cb881.png)
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7 . 在复平面上,点
所对应的复数
(
为虚数单位),
是某给定复数,复数
所对应的点为
,我们称点P经过变化成为了点Q,记作
.
(1)给出
,且
,求点P的坐标;
(2)给出
,若点P在椭圆
上,
,求
的取值范围;
(3)已知点P在双曲线
上运动,试问是否存在
,使得
在双曲线
上运动?若存在,求出
;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1822c00fd7de798ef5ff010638d0bc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b043be463a12c01175d22d744aa20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562bd9aa8e20703394465a41d03a262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3cb96f78ec5153e97ba299e8d18ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5300caab1b1cc6718d2c88dd678740.png)
(1)给出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa05b8af06d6229f75ef764b9f4b2ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93adf9eb3cc60e4d53798b482cb22c01.png)
(2)给出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7e0d83b936939dbd3f2ad55c0ed8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205da5e1d2730ee0b3de8bca3e29f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5300caab1b1cc6718d2c88dd678740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a84af713ec9898211637cfa1b0ef3b2.png)
(3)已知点P在双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5300caab1b1cc6718d2c88dd678740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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8 . 已知关于
的实系数方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4d46b3570cdf2ec0c951d1cd34f61d.png)
(1)当
时,在复数范围内求方程的根.
(2)方程有一个模为1的虚根,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4d46b3570cdf2ec0c951d1cd34f61d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
(2)方程有一个模为1的虚根,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 已知关于
的实系数方程
其中
为实数.
(1)若
是该方程的根,求
的值;
(2)若
求该方程两根之积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084b595eced7fd7d8287ab7baa5defc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a550c916c64f621010e604a30ef67566.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d75df512aacb40b1559b14e6b03a26f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaacfaef44a654c0a1c283ef03fc0550.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55580c3f4da85726ed463bd16f54d1d5.png)
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10 . 绝对值|x﹣1|的几何意义是数轴上的点x与点1之间的距离,那么对于实数a,b,
的几何意义即为点x与点a、点b的距离之和.
(1)直接写出
与
的最小值,并写出取到最小值时x满足的条件;
(2)设a1≤a2≤…≤an是给定的n个实数,记S=
.试猜想:若n为奇数,则当x∈ 时S取到最小值;若n为偶数,则当x∈ 时,S取到最小值;(直接写出结果即可)
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761a4034330ec48e65d5a627c4184760.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c070ebf11edb1cea3de2238cfa33b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7167c74880c15aa17025fefda0ab1a34.png)
(2)设a1≤a2≤…≤an是给定的n个实数,记S=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b509416f9bf85cbf0a548fe126f0144.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e5ad1bcecbf9eb0fd7982776d29afc.png)
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