名校
解题方法
1 . 已知
在
时有极值0.
(1)求常数
,
的值;
(2)求
在区间
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd02d645771e1cb70604dcb75fe7472d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
(1)求常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de47f5392afd04a466c7a8c530a6032.png)
您最近一年使用:0次
2023-07-25更新
|
242次组卷
|
3卷引用:重庆市巫溪县上磺中学校2022届高三(春招班)上学期期末数学试题
2 . 如图,在四棱锥
中,
底面
,
,
,
,
为棱
上一点.
![](https://img.xkw.com/dksih/QBM/2021/12/14/2872451579682816/2878792506867712/STEM/4da2c9e8b8824a7897fd0f7cb5bce543.png?resizew=285)
(1)求证:
;
(2)若
平面
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ff5ff92f2505a933d0213039f4c014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b364e1ade1c80f93cab19387aad6a59c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2021/12/14/2872451579682816/2878792506867712/STEM/4da2c9e8b8824a7897fd0f7cb5bce543.png?resizew=285)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7dac702fe64edf1bc265da4b98cf2a0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c34b18525831f3eda7bb90be0199b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2021-12-23更新
|
272次组卷
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2卷引用:重庆市巫溪县上磺中学校2022届高三(春招班)上学期期末数学试题
3 . 已知双曲线C和椭圆
有公共的焦点,且离心率为
.
(1)求双曲线C的方程.
(2)经过点M(2,1)作直线l交双曲线C于A,B两点,且M为AB的中点,求直线l的方程并求弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292836e699ccddbd471bae5dbf9aca80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
(1)求双曲线C的方程.
(2)经过点M(2,1)作直线l交双曲线C于A,B两点,且M为AB的中点,求直线l的方程并求弦长.
您最近一年使用:0次
2020-03-17更新
|
2692次组卷
|
8卷引用:重庆市巫溪县上磺中学校2022届高三(春招班)上学期期末数学试题