名校
解题方法
1 . 已知函数
.
(1)若
,分析
的单调性.
(2)若对
,都有
恒成立,求
的取值范围;
(3)证明:
对任意正整数
均成立,其中
为自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ed6a1407577c3857c6c6f95e9c609d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fad1dd76d5b72f10f5bb62693a2996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254598c133a01f1b8a6b1ca6ee2bd079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
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2 . 关于函数
,下列说法正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9632d5013fd83f3c494a93cd57d636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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名校
3 . 已知函数
的导函数为
,且
,
,设
,
是方程
的两个根,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b530afac83ef9ee8f635e6e6d83ff28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44dd9c3304c12211c3552028eb7778d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.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/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
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解题方法
4 . 已知函数
3
2
在定义域x∈[-2,2]上表示的曲线过原点,且在x=±1处的切线斜率均为-1.有以下命题:
①
是奇函数;②若
在[s,t]内递减,则|t-s|的最大值为4;③若
的最大值为M,最小值为m,则M+m=0;④若对∀x∈[-2,2],
恒成立,则k的最大值为
2.
其中正确命题的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879fdb8378aa65d587321c71e142b11a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3643d27efb38374315d4ac171e11fe3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff7ef8bf6986118b3437271eda3f198.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c9874e2d1df2a4152dcd1172a50ee97.png)
2.
其中正确命题的个数为( )
A.1个 | B.2个 | C.3个 | D.4个 |
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2020-09-12更新
|
108次组卷
|
3卷引用:2016届海南省华侨中学高三考前模拟理科数学试卷
2016届海南省华侨中学高三考前模拟理科数学试卷(已下线)考点17 利用导数研究函数的极值与最值(考点专练)-备战2021年新高考数学一轮复习考点微专题2023版 湘教版(2019) 选修第二册 过关斩将 第1章 1.3.3三次函数的性质:单调区间和极值
5 . 已知圆C1:x2+y2=r2截直线x+y-
=0所得的弦长为
.抛物线C2:x2=2py(p>0)的焦点在圆C1上.
(1)求抛物线C2的方程;
(2)过点A(-1,0)的直线l与抛物线C2交于B,C两点,又分别过B、C两点作抛物线C2的切线,当两条切线互相垂直时,求直线l的方程.
![](https://img.xkw.com/dksih/QBM/2015/9/23/1572239484821504/1572239490908160/STEM/9f164a15d47c4eb8bb844d9a9d63acbb.png)
![](https://img.xkw.com/dksih/QBM/2015/9/23/1572239484821504/1572239490908160/STEM/6fcc6461c4584e6498f175c6ed51ba73.png)
(1)求抛物线C2的方程;
(2)过点A(-1,0)的直线l与抛物线C2交于B,C两点,又分别过B、C两点作抛物线C2的切线,当两条切线互相垂直时,求直线l的方程.
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名校
6 . 如图,由
围成的曲边三角形,在曲线
弧上求一点
,使得过
所作的
的切线
与
围城的三角形
的面积最大,并求得最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febed000c8420f772768354c326a2cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c87b8e05d61ddc69dbc02772d719d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1685f39771b21ab0e9fc5f4abe4aa144.png)
![](https://img.xkw.com/dksih/QBM/2017/2/16/1625386780647424/1664945024081920/STEM/81f6250a80d540459eca534d8f3109af.png?resizew=155)
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2017-04-13更新
|
373次组卷
|
3卷引用:2016-2017学年海南省海南中学高二上学期期末考试数学(文)试卷
7 . 设集合
,
,从集合
中随机地取出一个元素
,则
的概率是
![](https://img.xkw.com/dksih/QBM/2015/6/15/1572124333285376/1572124339052544/STEM/1d1e723302e34ef9b4636b502e986cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dafa7e062ece0e637d2d338f0cb224b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e0a79d27745c206233f25eec9384c9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9-10高三·海南·阶段练习
8 . 数列
成等差数列
,则
分别为_______ ,由此猜想出
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f44660a02c76905fb57ee1ab98278b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3719de0fb90ce25167a7e15fb52df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0dcfbaf48e566060b6035fe9a5de85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81c68c6e1ecc9657768b37ce4ac1767.png)
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2012·海南省直辖县级单位·一模
9 . 设
=
,则二项式
展开式中不含
项的系数和是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae3a398b753d3b4ded119f3179cf0d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd60d6e2f6d50c0e36e6307f4be3a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
A.-192 | B.193 | C.-6 | D.7 |
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