1 . 设复数
,则复数
的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e754e41d33d46b704e9d5ee1082fdd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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名校
2 . 已知
,
是实数,1和
是函数
的两个极值点
(1)求
,
的值.
(2)设函数
的导函数
,求
的极值点.
(3)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed4e59a6f4aa3c12b85d46b5cfda9e97.png)
其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2fbeb4a2d0422d46d7d1d6e9e4e707.png)
求函数
的零点个数.
![](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/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fbc010a176e0a7ec721723b0dc06da.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86135bd40536042536c1c7bed21d0171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf7b0fa43423114258df836fc405d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86135bd40536042536c1c7bed21d0171.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed4e59a6f4aa3c12b85d46b5cfda9e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05250abe6da85eb0b555948d7dbaf317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2fbeb4a2d0422d46d7d1d6e9e4e707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05250abe6da85eb0b555948d7dbaf317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67b3c1053018e095b0e8dfa94003f28.png)
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今日更新
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83次组卷
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4卷引用:上海市朱家角中学2023-2024学年高二下学期第二阶段质量监测数学试题
名校
3 . 已知
为虚数,且
为实数.
(1)求证:
;
(2)若
为纯虚数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ae50806d8c14f0275864b30e9f30a7.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecce6cb2b1ee01a28ebe39d65e21fd94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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4 . 若复数
满足
(
为虚数单位),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb66180881bbde8c4ed375cb95c670f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 若复数
是方程
的一个根,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/01199e52ea8ed44a69b8dd76e3567704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
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真题
解题方法
6 . 已知函数
的定义域为R,定义集合
,在使得
的所有
中,下列成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff42ff0e772a602981c54616134a52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e98d299979423e5ae74b618b07d10c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
A.存在![]() | B.存在![]() ![]() |
C.存在![]() | D.存在![]() ![]() |
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7 . 若函数
,则其导函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43f7c71aff75d60d21a9c477eb907d2.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81bf74389c72cd8508a26913de13130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43f7c71aff75d60d21a9c477eb907d2.png)
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8 . 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/b8d6a6098570ac0ec5df5a1b7c6994e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
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解题方法
9 . 已知
为虚数单位,
是实系数一元二次方程的两个虚根.
(1)设
满足方程
,求
;
(2)设
,复数
所对的向量分别是
与
,若向量
与
的夹角为钝角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff994933e5444325ae520801fa3d03cb.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff994933e5444325ae520801fa3d03cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f1d87ff20182c4809b5da84080a36c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff994933e5444325ae520801fa3d03cb.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db04f988e1aba18b0a3470d332908c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff994933e5444325ae520801fa3d03cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f7c042f3cdc2cd9c63e38629a5cf3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437dc907211c5934f938d869f6b19e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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10 . “
”是“实系数一元二次方程
有虚根”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c224f0b3f6788be349e1618fa4f91b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3a0b38f48a2c594d1129b45cc31324.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不是充分条件也不是必要条件 |
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