1 . 经过点
,斜率为3的直线方程为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69abe959988e4c8c0739f5857ccfb0f.png)
您最近一年使用:0次
2024-01-13更新
|
445次组卷
|
2卷引用:江苏省宿迁市青华中学2023-2024学年高二上学期期中考试普通班数学试卷
解题方法
2 . 若关于
的方程
有两个不等根,则实数
的取值范围为_______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621a90f80af1ef6780b407c1009b1eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
3 . 椭圆有这样的光学性质:从椭圆的一个焦点出发的光线,经椭圆反射后,反射光线经过椭圆的另一个焦点.根据椭圆的光学性质解决下题:已知曲线
的方程为
,其左、右焦点分别是
,
,直线
与椭圆
切于点
,且
,过点
且与直线
垂直的直线
与椭圆长轴交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80e7a0587a8546c4efafe398c6a263f.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3cf706fe2ae0b2e99041ec1f4bf9ed.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/0f85fca60a11e1af2bf50138d0e3fe62.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/12f977940552e09f59ea959965522dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80e7a0587a8546c4efafe398c6a263f.png)
您最近一年使用:0次
4 . 若关于
的不等式
的解集为
,则关于
的不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb93c092e22d604640d8b31886857e7.png)
您最近一年使用:0次
5 . 不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a57d79372cf3ba7382906351aa88fb.png)
您最近一年使用:0次
6 . 满足
的集合
的个数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4cc579be7ee0d7f10c14b5af59f9e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
7 . 已知
为等差数列,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa37e5661af68b263a3ed9030d4e9003.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329785900390130a04a57d0b55aaa569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3fcb5d83cbbc3eb6d5d474b167c7bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa37e5661af68b263a3ed9030d4e9003.png)
您最近一年使用:0次
8 . 已知一个抛物线形拱桥在一次暴雨前后的水位之差为
,暴雨后的水面宽为
,暴雨来临之前的水面宽为
,则暴雨后的水面离拱顶的距离为__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36b51b654efcff60d2d640b9b4c4471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7854968bbf6576a1fd9926ee0d4d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ea92883fe24b097c9a881ef8c92eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
您最近一年使用:0次
9 . 在等差数列
中,若
,则
的值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e08f666576599211317e13c51260ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
您最近一年使用:0次
10 . 集合
,集合
,若
,则
的取值集合为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3123ecc11b1e2f4e3a7dc1f88822f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b41d8a861a67cad86c535f6923a387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-09更新
|
361次组卷
|
2卷引用:江苏省宿迁青华中学2023-2024学年高一上学期9月实验班数学试题