1 . 已知函数
在区间
上单调递增,且在区间
上恰好有一个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2923070c5e1bb46dfb90ce6ca0fb35b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1a217a63c9519a07d80dac489690f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e460a9260ec217850f1b916427a2265b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 如图所示,在棱长为2的正方体
中,直线
平面
,
是
的中点,
是线段
上的动点,则直线
与侧面
的交点
的轨迹长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/7752d76d-733d-459e-a1bd-489f9be06f39.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f904c1eed0804b9347c206ea167f1aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d62609bb140bd146e9a83e27627c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fc725182c2fd1413319fea35b95c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/7752d76d-733d-459e-a1bd-489f9be06f39.png?resizew=159)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 设
,
,
,其中
是自然对数的底数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba647673d152c70cb1bc6356dbe0fec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a988c6198c39142ee47e96fb58770ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c558f33dc7676bbf4b7e93f56bb87f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 命题“
,
”的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e873528ea9b742780217c76c96f8dd5.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-03-12更新
|
334次组卷
|
2卷引用:四川省成都外国语学校2023-2024学年高三上学期期末考试理科数学试题
名校
5 . 已知双曲线
的左,右焦点分别是
,
,左,右顶点分别是A,B,点P在C上,l是C的一条渐近线,O是坐标原点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ce1534a372db7666711443631c4ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
A.焦点![]() |
B.若![]() ![]() |
C.若l的倾斜角为30°,则其实轴长为![]() |
D.若直线PA,PB的斜率分别为![]() ![]() |
您最近一年使用:0次
2024-03-12更新
|
245次组卷
|
2卷引用:四川省泸州市2023-2024学年高二上期期末统一考试数学试卷
6 . 已知各项均为正数的等比数列
的前n项和为
,若
,
,
成等差数列,且
.
(1)求
;
(2)若
,求数列
的前n项和
.
![](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/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6fae41755ecb64ac239a5a2d767354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ab4706be6b3854b9c30ab609e5da68.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d527d9b8c65ce00307c68d93bfeaec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da72309d2507e2f5e5ed88d8cc08963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
名校
7 . 已知椭圆
的离心率为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1500c00ba093a3834e691180e4d777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2024-03-06更新
|
904次组卷
|
3卷引用:四川省成都市第七中学2023-2024学年高三上学期期末考试文科数学试卷
名校
解题方法
8 . 设
、
是椭圆
:
的两个焦点,点P在C上,若
为直角三角形,则
的面积为( )
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
A.![]() | B.![]() | C.![]() | D.1或![]() |
您最近一年使用:0次
2024-03-03更新
|
463次组卷
|
2卷引用:四川省德阳市2023-2024学年高二上学期期末教学质量监测数学试题
名校
解题方法
9 . 已知双曲线
的两个焦点为
为
上一点,
,
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ed463bf16c78a4bbb9d3acff922afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff00fc29b9b9374935cf7bd256fb6234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb29fec0b08ce7a9fd357714bcf1a611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-03更新
|
521次组卷
|
5卷引用:四川省部分名校2023-2024学年高三上学期期末联合考试文科数学试题
名校
10 . 对任意的实数, 圆
上一点到直线
的距离
的取值范围为
您最近一年使用:0次
2024-03-03更新
|
205次组卷
|
2卷引用:四川省成都市2023-2024学年高二上学期期末校级调研联考数学试题