名校
1 . 已知函数
,且
与
轴相切于坐标原点.
(1)求实数
的值及
的最大值;
(2)证明:当
时,
;
(3)判断关于
的方程
实数根的个数,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e1375088563294adc1b57cb48833bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06d4aa6849bbb8b543a0b361e1ebb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d541585c3e7895f814e6cb37c57452d.png)
(3)判断关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cf3b13382a1f1dfeb7deebb3f5e925.png)
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2024-03-06更新
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3卷引用:贵州省毕节市织金县部分学校2024届高三下学期一模考试数学试题(一)
2 . 已知椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的左、右焦点分别为
,
,点
在
上,
,
,
为直线
上关于
轴对称的两个动点,直线
,
与
的另一个交点分别为
,
.
(1)求
的标准方程;
(2)
为坐标原点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bea681006f614f8a070e9c6a942c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21885720234fea13d71521d5ea09c0bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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2024-01-03更新
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846次组卷
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3卷引用:贵州省毕节市金沙县部分学校2024届高三下学期高考模拟(六)数学试题
贵州省毕节市金沙县部分学校2024届高三下学期高考模拟(六)数学试题河南省名校学术联盟2024届高三高考模拟信息卷&押题卷数学试题(二)(已下线)专题27 直线与椭圆的位置关系及椭圆的弦长问题、面积问题(期末大题1)2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)
22-23高三上·江西南昌·阶段练习
解题方法
3 . 黎曼函数R(x)是一个特殊函数,由德国数学家黎曼发现并提出,该函数定义在[0,1]上,当
都是正整数,
为最简真分数)时,
;当
或1或x为(0,1)内的无理数时,
.若
为偶函数,
为奇函数,当
]时,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf51ef39626c5fbbca1cd931b4b19db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a507c062709cfe2f218896247461c7d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35888de80226a81c4c80fecb8f4a9337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df21bcb07cb594d6614230b2317942f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb5e3c82f6a63eff281d22c5dce3717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55d54b37137bf7931c49d5ea0aa10d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa23f55b24e2c4f5d6fe25f577026a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f0938fdb2f573f102d3422eefb074e.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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2022-10-30更新
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483次组卷
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4卷引用:贵州省毕节市金沙县2023届高三上学期期中教学质量检测数学(理)试题
贵州省毕节市金沙县2023届高三上学期期中教学质量检测数学(理)试题(已下线)江西省南昌市金太阳大联考2023届高三上学期10月联考数学(文)试题(已下线)江西省南昌市金太阳大联考2023届高三上学期10月联考数学(理)试题江西省南昌市三校(一中、十中、铁一中)2023届高三上学期第一次联考(11月)数学(理)试题
4 . 已知函数
.
(1)讨论函数f(x)的单调性;
(2)是否存在b,c,使得f(x)在区间[-1,0]上的最小值为-1且最大值为1?若存在,求出b,c的所有值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a532bdab0a4df090e927aba503fd6e6.png)
(1)讨论函数f(x)的单调性;
(2)是否存在b,c,使得f(x)在区间[-1,0]上的最小值为-1且最大值为1?若存在,求出b,c的所有值;若不存在,请说明理由.
您最近一年使用:0次
2021-02-07更新
|
242次组卷
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2卷引用:贵州省毕节市2021届高三上学期诊断性考试数学(文)试题(一)
5 . 已知函数
.
(1)讨论
的导数
的单调性;
(2)若
有两个极值点
,
,求实数
的取值范围,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9267ff218207a5a0ca1553bc91027bcf.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004c0d2a3ede111b1eff3f03edfd5616.png)
您最近一年使用:0次
2020-01-07更新
|
1316次组卷
|
2卷引用:贵州省毕节市2019-2020学年高三年级诊断性考试(二)理科数学试题
11-12高三上·贵州毕节·阶段练习
6 . 已知函数
在
处取得极值.
(Ⅰ)求实数
的值;
(Ⅱ)若关于
的方程
在
恰好有两个不相等的实数根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573f19b1387edfe6dd8b56f9fcdc84f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ee50ed8900698e92e610f212678873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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