1 . 圆锥曲线C的弦AB与过弦的端点A,B的两条切线的交点P所围成的三角形PAB叫做阿基米德三角形,若曲线C的方程为
,弦AB过C的焦点F,设
,
,
,则有
,
,对于C的阿基米德三角形PAB给出下列结论:①点P在直线
上;②
;③
;④
,其中所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c45b5bbd5fb7706c6f7c24df34fc145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e393f5e77659df4bc874f0009c717c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25a40d4669c43aff783e59de769b6ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39978841bdbe3d4d968557f8048f223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2781fb4bd9c996d2aba684886e1634e2.png)
您最近一年使用:0次
2023-02-08更新
|
506次组卷
|
5卷引用:江西省部分学校2023届高三下学期一轮复习验收考试(2月联考)数学(文)试题
解题方法
2 . 已知数列
和正项数列
,其中
,且满足
,数列
的前n项和为
,记
,满足
.对于某个给定
或
的值,则下列结论中:①
;②
;③若
,则数列
单调递增;④若
,则数列
从第二项起单调递增.其中正确命题的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b52c1e5e441410c43b2d30d0e9080e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c0a953fe3428caca3e32f306f97f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51d582a3aea09c5ef593feb710d9e65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3233aed23bd3a029d445d275111b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485730913ec2af55025671d69267182c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7492975ca65036d5065a6637ede730e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d122408a30c563852b1defa57a4d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e851326ee1c71eb79b3707554ddbc0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3d090f557cf0937d6dbddee690c22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b54584544a6b9fae67a5a4d7fb4fe50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51d582a3aea09c5ef593feb710d9e65.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
的导函数为
,
,且
在R上为严格增函数,关于下列两个命题的判断,说法正确的是( )
①“
”是“
”的充要条件;
②“对任意
都有
”是“
在R上为严格增函数”的充要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc1a317e2e6f1caf1e67bf4073cf789.png)
②“对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e702d87b7d70bf870bc04ef6df889d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.①真命题;②假命题 | B.①假命题;②真命题 |
C.①真命题;②真命题 | D.①假命题;②假命题 |
您最近一年使用:0次
2023-12-12更新
|
765次组卷
|
7卷引用:江西省上饶市广丰一中2024届高三上学期12月月考数学试题
江西省上饶市广丰一中2024届高三上学期12月月考数学试题上海市闵行区2024届高三上学期学业质量调研(一模)数学试卷湖南省衡阳市第八中学2024届高三上学期第五次月考数学试题(已下线)专题09 导数(三大类型题)15区新题速递(已下线)专题01 集合(15区真题速递)广东省广州市第二中学2023-2024学年高二下学期期中考试数学试题(已下线)上海市高二下学期期末真题必刷03(常考题)--高二期末考点大串讲(沪教版2020选修)