设复数
,若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53f39399c3a214fadaf6229edaae5ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9899763c28d7c109e9acae6cabe64f26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
9-10高二下·天津·期中 查看更多[7]
(已下线)2010年天津一中高二下学期期中考试数学(理科)试题(已下线)2010-2011年山东省德州一中高二下学期期中考试数学试卷(B)宁夏育才中学2016-2017学年高二下学期期中考试数学(理)试题吉林省延边市长白山第一高级中学2019-2020学年高二下学期验收考试数学(文)试卷吉林省长春市九台区师范高级中学2019-2020学年高二下学期期中数学(理)试题福建省福清市龙西中学2018-2019学年高二下学期期中考试数学(理)试题甘肃省武威市凉州区2020-2021学年高二上学期期末考试数学(理科)试题
更新时间:2016-12-11 02:40:12
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知集合
,
,讨论实数m取何值时:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8293a6f2c78c071d08f9901b2d919869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9481124dfc3c7a851cdace711467dbc2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede280b7d4529ca9afb08bff174225ef.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202ab7965ce52c189d9b428416c71981.png)
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【推荐2】已知复平面上A,B两点对应的复数分别为1和i,设线段
上的点所对应的复数为
.求复数
的轨迹.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55ed95dc6a7dddee3e8c74dcc2e4095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ea3cc01ce7266cdf0fd73fd50d23c8.png)
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适中
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解题方法
【推荐1】已知复数
,
.
(1)当
,
,
,
时,求
,
,
;
(2)根据(1)的计算结果猜想
与
的关系,并证明该关系的一般性;
(3)结合(2)的结论进行类比或推广,写出一个复数的模的运算性质(不用证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ee9ab0517c7652bb1d7281a57e1b4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478e4751a1d2a8055982065473ec1f62.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c1344592c925b273f2cb9b9e47ebbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8b3f66119c2ce542984d12eb2b6b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dff9388eee5c812d183b254d13f461b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f08fb0fd529af5bf8dc288f00702c5.png)
(2)根据(1)的计算结果猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f08fb0fd529af5bf8dc288f00702c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbfeaff30581668b292f2bd9b7aeb126.png)
(3)结合(2)的结论进行类比或推广,写出一个复数的模的运算性质(不用证明).
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名校
解题方法
【推荐2】已知复数
,且
为纯虚数.
(1)求复数
;
(2)若
,求复数
以及模
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1b13ff1f3c22faa1f4b4388a4dce21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe8424a24e3a3783fb3c2889b03a7a8.png)
(1)求复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4da5850061d811b8ba5f5ad7b1a9ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4f492569b61473f15810439d4b5b33.png)
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【推荐3】已知复数
,
,其中i为虚数单位,且满足
,且
为纯虚数.
(1)若复数
,
在复平面内对应点在第一象限,求复数z;
(2)求
;
(3)若在(1)中条件下的复数z是关于x的方程
的一个根,求实数m,n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9e4a7572ce9d7f8041b6ec5a3c3ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca36e02eff4f81358f6746bdf4b55587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839ba7c0f1fc30151d18a2e337951dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88596247ceee5cd7a779c081fb715be0.png)
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9e4a7572ce9d7f8041b6ec5a3c3ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca36e02eff4f81358f6746bdf4b55587.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ff17f34f5ccdba2efb0ab965fb43e4.png)
(3)若在(1)中条件下的复数z是关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae9ab71d1179a20680652f8c68e77c8.png)
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【推荐1】(1)计算:
;
(2)若复数z满足
,
,求复数
的三角形式.
(3)利用复数证明余弦定理.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f665bf82fe144de1c0c3312435f5af.png)
(2)若复数z满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095e8bf80cfcaadc5b835199f7a41290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7121ef0e8277c5416358f41140a4d048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767bb0023cfd3978108ea8d39ad1f4a3.png)
(3)利用复数证明余弦定理.
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【推荐3】已知复数
,且
为实数.
(1)求
的值;
(2)设
,若复数
在复平面内对应的点位于第四象限,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a195aba44d8623108de136cadfad52c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088da45a6eef6851535b3242ef7ce34c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de971553ea8a66d7849b138a4a0625c5.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d9379ff2aa291b3062b7c05f1105a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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