19-20高二下·江苏苏州·期中
1 . 已知
是虚数单位,将复数
化简成
的形式为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f11a99ddebf5b66694a591d72cc474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc228995efbba2e64d7f1de747024cc4.png)
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名校
2 . 用反证法证明“
,若ab是偶数,则a,b中至少有一个是偶数”时,应假设________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffb5ec03dd51196cc62880b815e3c9d.png)
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3 . 复数
(
为虚数单位)的虚部是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e11685bdcc5c8fe7bca3b766d9b183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
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解题方法
4 . 若复数
在复平面内的对应点位于第二象限,则m的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c2c6fd3bff7ab26b11a9ee0f886b53.png)
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2021-02-28更新
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2卷引用:云南省昆明市2019-2020学年高二下学期期中考试数学(文)试题
解题方法
5 . 设z=-3+2i,则在复平面内
对应的点位于__________ 象限
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
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2021-02-26更新
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2卷引用:新疆呼图壁县第一中学2021届高三9月月考数学(文)试题
6 . 已知复数
满足
(
为虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20237d87331364df8aca1d3c3f1a3cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
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7 . 已知复数
(
是虚数单位),则
=___________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1569ec41449465003d9f792ae9b12294.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4dbc79edb892befd4387e565d40a7a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de971553ea8a66d7849b138a4a0625c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1569ec41449465003d9f792ae9b12294.png)
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8 . 观察等式:f(
)+f(
)=1;f(
)+f(
)+f(
)=
;f(
)+f(
)+f(
)+f(
)=2;f(
)+f(
)+f(
)+f(
)+f(
)=
;
…
由以上几个等式的规律可猜想
=_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96dde66b55ce123648fef6989c19e50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8f6786ec1442b62b80c212d7b915c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58c8fe5b5b0b3815fcbedc955d9429e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d21c38616d26f873443dba0bba0e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6c7567972273b4ba733b47bf9d5408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
…
由以上几个等式的规律可猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78ece408e85bf6ed326ad8e15f2da3ce.png)
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2021-02-08更新
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9 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e873317bc32e67c1837f5f4ccb6a427.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e873317bc32e67c1837f5f4ccb6a427.png)
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2022-07-05更新
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4卷引用:2015-2016学年吉林省松原油田高中高二下期末理科数学卷
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10 . 在等差数列
中,若
,则有等式
成立.
类比这一性质,相应地在等比数列
中,若
,则有等式_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fbaaecf683d3158a2d020f2099c873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93cd7d7082fada5eeda06ae5b1186688.png)
类比这一性质,相应地在等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8dafcd3be708bd03cceb5d62949856.png)
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2021-02-01更新
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2卷引用:广东省深圳实验学校2020-2021学年高二上学期第二阶段考试数学试题