1 . 已知函数
.
(1)若函数
的图象在点
处的切线
过坐标原点,求实数
的值;
(2)讨论函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c009527272f5e429e764917cf3168560.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81158db42116f74e7b26e100f88dd535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
2 . 已知函数
,则
的单调递减区间为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c75c80137727c6ad12d4765831a7cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知复数z满足
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2331c64ed88ee1efb58bec63c5403712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1501a127eb91fb20065e33d40512e53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
A.![]() | B.![]() | C.2 | D.![]() |
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解题方法
4 . 复数
在复平面内对应的点的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe73541204159efdaf4a819e302d35a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 设复数
,
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c20af8eadf2eba12950010ee5ba1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.![]() |
D.复数![]() |
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6 . 若函数
存在零点
,函数
存在零点
,使得
,则称
与
互为亲密函数.
(1)判断函数
与
是否为亲密函数,并说明理由;
(2)若
与
互为亲密函数,求
的取值范围.
附:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35b13df9d8831bb4368e7036488675d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db18e638db2fb367cfe10bfaee37229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e60075f5d53066c03f106346dada26.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe2f63cdc7606986d6250facf20ad1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfd7245d512a98d9105f843c094c7e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
附:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c292239a48d1475428eeb9863d5dceb.png)
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7日内更新
|
193次组卷
|
4卷引用:云南省部分校2023-2024学年高二下学期月考联考数学试题
名校
7 . 帕德近似是利用分式有理函数逼近任意函数的一种方法,定义分式函数
为
的
阶帕德逼近,其分子是m次多项式,分母是n次多项式,且满足
,
,
,…,
时,
为
在
处的帕德逼近.
(1)求函数
在
处的
阶帕德逼近
;
(2)已知函数
.
①讨论
的单调性;
②若
有3个不同零点
,
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbfee67d1c1cb26b67ef0fe3169e6dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd909ba3e40f03e2f58a4eed2e05f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcb8c6a69df1a0deaba265e204d5f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047a8c1ed551fccee1c1848746c5f282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72029562177dfc99a171c9013eb90227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4573475f70860a3d99b92a329d0d07f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b1868d9850b7103e1326eb001dfbce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58de4362237a2a719cde7c9049903da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adc63ce466d20e93f7d09d8b0bf9076.png)
①讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fc0ce080b8ad8b63ba63259c680b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e03829b4bbd1148c7f479ca409d436.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,
,若直线
与函数
,
的图象均相切,则
的值为________ ;若总存在直线与函数
,
图象均相切,则a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3199e7b4e66aba9f167701839e94e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2aeb20f9e5c8ab97c0a6543a2cf0f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836b419464e4734e99af06c2fb104716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
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解题方法
9 . 已知复数
满足
(i是虚数单位),以下命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd00dff2163a3693164375269029137f.png)
A.![]() | B.![]() |
C.复平面上![]() | D.复数![]() ![]() |
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10 . 已知函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea826f6e1aaeff1dfdb7d77257a14532.png)
A.![]() ![]() |
B.![]() ![]() |
C.若![]() ![]() |
D.对任意两个不相等正实数![]() ![]() ![]() |
您最近一年使用:0次