1 . 已知复数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d7aa271bc5336632392b60b021c6cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
您最近一年使用:0次
2020-10-02更新
|
121次组卷
|
2卷引用:广西防城港市防城中学2020-2021学年高二第一次月考数学(理)试题
解题方法
2 . 函数
,
(1)求
的极值;
(2)若
在
上存在最小值,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f7615c744aeda8b3f333962c854a81.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b5f1633a51ef3a47957ce158de7630.png)
您最近一年使用:0次
3 . 设点P在曲线
上,从原点O向
移动,如果直线OP,曲线
及直线
所围成的两个阴影部分面积分别为
如图所示;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/5d0deded-9e77-44a0-8b01-27132634d46c.png?resizew=187)
(1)若
,求点P的坐标;
(2)求
的最小值,并求此时点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f767e95afa6b7430895988e578474715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2578b9b66df3cb080f572564c87ad60.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/5d0deded-9e77-44a0-8b01-27132634d46c.png?resizew=187)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31dd78e9156dcf6db93f6cbcc5b43b14.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21cbb1c2bcbcb8391ac5a879f2ae0.png)
您最近一年使用:0次
解题方法
4 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93219d16ba8b60e53bee8cffa24b0d1.png)
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,求
的极大值和极小值;
(3)若函数
在区间
上是增函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93219d16ba8b60e53bee8cffa24b0d1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9b4ac1458224ff0cd58a9118a725c4.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd82b5223c2a708c1729db2a3750990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b18d3688c7e2dccf584573eb788c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
5 .
在
处有极值0,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e328c20ada7164298ca70ceb5d5194ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b8e0ebd528f25e15d6b5836502179e.png)
A.2 | B.7 | C.2或7 | D.![]() ![]() |
您最近一年使用:0次
2020-10-01更新
|
327次组卷
|
2卷引用:广西防城港市防城中学2020-2021学年高二第一次月考数学(理)试题
6 . 已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c66d25834f1b6b1b51cba4956529b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc75e6ac37a620d26c04f89fc38c3fd.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
解题方法
7 . 函数
在
处的切线平行于
轴,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7071d5bd0a9c62c880700cb16826df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0497a5f47a2f95f9b94b8025a5cd3c26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.1 | C.![]() | D.10 |
您最近一年使用:0次
8 . “
是纯虚数”是“
为实数”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dc7fcba30c45ee0b9f176f99df63ff.png)
A.充分非必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
9 .
与
是定义在R上的可导函数,若
,
满足
,(
为
的导函数,
为
的导函数),则
与
满足( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9df31a2dc4e98cca80dcb00fa5b925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51350a90203fcdc2d500a89061b7f52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知
的导函数为
且满足
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa4bcb08a2652958a98142af57bf7f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次