解题方法
1 . 已知函数
,
.
(1)若
,且
,求
的最小值;
(2)若
,求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea89fb796dea0e3e7571530eaee85bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882b660047bb6ded500cedba57958e00.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7266b2ef457b8ddeee3fa2cc24022e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70dfd3b70aab0849a459a241d904aa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4ed37e1a0c5ba92ae64e65fe638ced.png)
您最近一年使用:0次
2023-02-21更新
|
266次组卷
|
3卷引用:广东省揭阳市惠来县2022-2023学年高一上学期期末数学试题
2 . 如图①,在
中,
,
,
,D,E分别是边AB,AC的中点,现将
沿着DE折起,使点A到达点P的位置,并连接PB,PC,得到四棱锥
,如图②,设平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e61111c1e9b98b79615f75540175c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/a0205f30-ec67-4205-b0d6-30b3efbcefa0.png?resizew=230)
(1)证明:
平面PBD;
(2)若点B到平面PDE的距离为
,求平面PEC与平面PBD夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8652515789d01ab3af8c9986cf94274a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede9e40f5cf450db6f01194559a19c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f82c6d699f70abacefcbafc891d2005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e61111c1e9b98b79615f75540175c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/a0205f30-ec67-4205-b0d6-30b3efbcefa0.png?resizew=230)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c05475f1fcf79483d11e0376b4706c.png)
(2)若点B到平面PDE的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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3 . 已知全集
,集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a7326f05ffb1119e61271dec158430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc180f8e71d1a596197b762e3ab14b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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解题方法
4 . 记等差数列
的前n项和为
,已知
,
,则
的通项公式为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a90d558417f34a812f0228a017ee26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb77d527d51ef96b1c8863185a06483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
5 . 如图,四边形ABCD是边长为
的正方形,P是圆弧
上的动点,且
,Q是线段BC上的动点.当点P固定时,点Q将运动到使
取到最小值时的位置;当点Q固定时,点P将运动到使
取到最大值时的位置.当某一时刻,点P,Q都不再运动,且满足上述条件时,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/19/c0b2b947-fcf2-47de-a5f4-603ba6e4921a.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f9353ca110c8b81561455b232dbc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19eb95e5c6cb3461455745309528f3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c84a09595eabd6ae21a2e8faa7465c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/19/c0b2b947-fcf2-47de-a5f4-603ba6e4921a.png?resizew=128)
A.![]() | B.![]() | C.2 | D.不存在 |
您最近一年使用:0次
名校
解题方法
6 . 已知函数
,且存在唯一的整数
,使得
,则实数a的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1795c1a40cd23659739fd84ba827f875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2367b48e8f6dbbfe3dd14f6eab8238a5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-17更新
|
476次组卷
|
4卷引用:广东省揭阳市普通高中2023届高三上学期期末数学试题
广东省揭阳市普通高中2023届高三上学期期末数学试题(已下线)模块五 期末重组篇 专题5 高三期末湖南省常德市汉寿县第一中学2024届高三下学期4月月考数学试题(已下线)重难点突破08 利用导数解决一类整数问题(四大题型)
名校
7 . 已知椭圆E:
(
),F是E的左焦点,过E的上顶点A作AF的垂线交E于点B.若直线AB的斜率为
,
的面积为
,则E的标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47153fdd73c0661fa460130082e30929.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6406ab412e318ba2f69aff7f901f94a8.png)
您最近一年使用:0次
2023-02-17更新
|
1085次组卷
|
4卷引用:广东省揭阳市普通高中2023届高三上学期期末数学试题
广东省揭阳市普通高中2023届高三上学期期末数学试题浙江省绍兴市第一中学2023届高三下学期4月限时训练数学试题(已下线)第五节 椭圆 第二课时 直线与椭圆的位置关系 核心考点集训(已下线)第05讲 椭圆及其性质(八大题型)(讲义)-1
解题方法
8 . 已知
,则下列结论一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54969adfe007f7dacf556c4c863670b9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
9 . 已知函数
满足①
;②在定义域内单调递增.请写出一个符合条件①②的函数的表达式______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2dd2932c2f2d8ba3327da0456e3929.png)
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解题方法
10 . 已知双曲线C:
的左、右焦点分别为
,
,且C的一条渐近线经过点
,直线
与C的另一条渐近线在第四象限交于点A,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.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/56c40412fb195679ac1b7913bc4fb02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
A.C的离心率为2 |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() |
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