1 . 设
.若曲线
上一点
不满足
,则曲线
在点
处的切线方程为
.则曲线
过点
的切线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896021fc6c5bd4fc7fb58cc894ff81a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928bbbe3bdcda7bd6af53da4b1ee340d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6a72ab261df207cbbc3b58db5c4312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ede062e00b14e9e1604c8174c59942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
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2 . 数学中有很多形状优美,寓意美好的曲线,曲线
就是其中之一,则曲线
所围成的封闭图形的面积是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30dbd61c93b622e75a72ba87a29f7107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2022-11-30更新
|
768次组卷
|
4卷引用:江苏省盐城中学2022-2023学年高二上学期期中数学试题
名校
3 . 设函数
由方程
确定,下列结论正确的是________ (请将你认为正确的序号都填上)
①
是
上的单调递减函数;
② 对于任意
,
恒成立;
③ 对于任意
,关于
的方程
都有解;
④
存在反函数
,且对任意
,总有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c4e06dccd25fc4155dbdedb6658f61.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
② 对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d6e81ff62a52037bc6d9bde7cd5cc.png)
③ 对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a2a1822ac7392b61b2c0fffc1fbc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36192251124f3b135026ed242e959210.png)
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2019-12-05更新
|
585次组卷
|
2卷引用:上海市向明中学2018-2019学年高三上学期第一次月考数学试题
名校
4 . 平面内两定点M(0,-2)和N(0,2),动点P(x,y)满足|PM|·|PN|=
(
≥4),动点P的轨迹为曲线E,给出以下命题:①∃
,使曲线E过坐标原点;②对∀
,曲线E与x轴有三个交点;③曲线E只关于y轴对称,但不关于x轴对称;④若P,M,N三点不共线,则△PMN周长的最小值为
;⑤曲线E上与M,N不共线的任意一点G关于原点对称的点为H,则四边形GMHN的面积不大于
.其中真命题的序号是____________ .(填上所有真命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db20358d559aa21850fcb19e15ac9cb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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