解题方法
1 . 设
与
是定义在同一区间
上的两个函数,若函数
在
上有两个不同的零点,则称
和
在
上是“关联函数”,区间
称为“关联区间”.若
与
在
上是“关联函数”,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49341b57eb107f416a014903ce25a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e207cf62e3a7e282eac4c4a3455bbf9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf8ec089ed093984914f087c773375c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe38d0c8cb0b452b2ab3611c7456e263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-17更新
|
142次组卷
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2卷引用:陕西省渭南市临渭区2020-2021学年高一上学期期末数学试题
名校
解题方法
2 . 设O为坐标原点,P是以F为焦点的抛物线
上任意一点,M是线段PF上的点,且
,则直线OM的斜率的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14e2988640ff412c8db0288018faaab.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
名校
3 . 已知点
在直线
上,且满足
,则
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab34fa1d24442da67e0c12f7703900c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c505341eff80a9aada3fa07d74b67302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf05e22049aa0a0dc9bb7bb4714a58d.png)
您最近一年使用:0次
4 . 已知点A(-2,0),B(2,0),动点M
满足直线AM与BM的斜率之积为
,记M的轨迹为曲线C.
(1)求C的方程,并说明C是什么曲线;
(2)若直线
和曲线C相交于E,F两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
(1)求C的方程,并说明C是什么曲线;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db0a1cbf7b0ed76c443b953af8734d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28baa3ec1ef83511eff382dcc0c885be.png)
您最近一年使用:0次
2020-10-21更新
|
572次组卷
|
3卷引用:陕西省渭南市蒲城县尧山中学实验学部2021-2022学年高二上学期9月月考文科数学试题
陕西省渭南市蒲城县尧山中学实验学部2021-2022学年高二上学期9月月考文科数学试题贵州省贵阳市第二中学2020-2021学年度高二10月月考卷数学试题(已下线)广东省佛山市南海区桂城中学2024届高三上学期11月月考数学试题
5 . 已知直线
与抛物线
交于
,
两点,且
的准线与
轴交于点
.
(1)证明:
;
(2)直线
,
的斜率分别记为
,
,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba028c08c384ea58f685f68ea9e5814a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f041a6e34de49aaf70ac9159553fda3.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f0177236b8a8ba08499fe494352c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2019-01-01更新
|
364次组卷
|
5卷引用:陕西省咸阳市永寿中学2020-2021学年高二下学期第一次月考文科数学试题