名校
1 . 求解下面两题
(1)若复数
为纯虚数,求
的值;
(2)已知
的方程
有实数根
,求
的值.
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f05d311f348d71451d96867dbff0a479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c79a99980051ee45e0876848a0f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b628263bad2fc986af5be79d45ee169.png)
您最近一年使用:0次
2024-04-01更新
|
478次组卷
|
3卷引用:福建省泉州市第七中学2023-2024学年高一下学期期中考试数学试题
福建省泉州市第七中学2023-2024学年高一下学期期中考试数学试题河南省郑州外国语学校2023-2024学年高一下学期3月月考数学试题(已下线)第12章 复数(提升卷)--学重难点突破及混淆易错规避(苏教版2019必修第二册)
解题方法
2 . 已知角
的顶点为坐标原点,始边与
轴的非负半轴重合,终边上有两点
,其中
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf5c1d124e8e023fe8e8c5ef3412813.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ad78110124b029402ba8add227f1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c43720ebd6a9f03eb1396676fe02b5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf5c1d124e8e023fe8e8c5ef3412813.png)
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3 . 在平面直角坐标系
中,角
的顶点为坐标原点,始边为
轴的非负半轴,终边与单位圆交于点
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14033c0048e5b026d90ae32df7667f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9189f455656e4ecf4e5f1ae4e634eee1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b2a73b2e966951aad70daeb2a35ed3.png)
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4 . 已知
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c50a0367a96faa9a98569102161ace3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ad56d5dbcba624a00c74099b094fc6.png)
A.![]() | B.![]() | C.-3 | D.3 |
您最近一年使用:0次
名校
解题方法
5 . (1)化简求值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a82449d11124d3200cbbd494905dd16.png)
(2)已知
为锐角,且满足
求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a82449d11124d3200cbbd494905dd16.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47df179dfe55c58243e05dd59c80ef32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c862093858b9708d3c790d436bc9edda.png)
您最近一年使用:0次
名校
解题方法
6 . 化简求值:
(1)已知
,且
为第四象限的角,求
的值.
(2)已知
,求
的值.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9088e31e00eaa4e95c1e6717b0c82cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef966cdd137b3b10e290201b4d17542e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8548af766a0d43c1c5a93d05028bc911.png)
您最近一年使用:0次
解题方法
7 . 已知
,求下列各式的值;
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee41ce496748cacdc9fcda649f5487b8.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19a69f28a088c979f78e82a07252107.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64d7e48f557e25ac36108357479f70.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d2ef206402e238d5a565b937678028.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040fe49145eed6195b0794d89539129d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d2ef206402e238d5a565b937678028.png)
您最近一年使用:0次
9 . 已知角
的顶点为原点,始边为
轴的非负半轴,若其终边经过点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efb64d90e829d0e50b4313df78584dd.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ae62e09319a0a33a9b2c687f0224d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efb64d90e829d0e50b4313df78584dd.png)
您最近一年使用:0次
2024-01-15更新
|
461次组卷
|
2卷引用:福建省德化一中、永安一中、漳平一中三校协作2024届高三上学期12月联考数学试题
解题方法
10 . 已知
是第三象限角,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e10aa3b20e8f21e7d19b5d5aca3685f.png)
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e10aa3b20e8f21e7d19b5d5aca3685f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed77a5dce1b06476dd157de4866888d.png)
您最近一年使用:0次