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)
您最近一年使用:0次
2024-03-06更新
|
1248次组卷
|
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)
您最近一年使用:0次
2024-01-03更新
|
849次组卷
|
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)
3 . 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
|
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)