1 . 若函数
图象的对称中心为
,记函数
的导函数为
,则有
,设函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206bfc32c236573f555b684afb722948.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cfe96abb2424379059cf1a0c2c4217f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70ccb86c1d6ce17d0e0354afe1e4403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08554a10bc205d289d3359068ef030e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789c5a8a2fb3b6c4951b762aab04606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206bfc32c236573f555b684afb722948.png)
您最近一年使用:0次
2018-11-15更新
|
1202次组卷
|
6卷引用:河南省洛阳市2016-2017学年高二下学期期末考试数学(理)试题
解题方法
2 . 平面内两定点
和
,动点
,满足
,动点
的轨迹为曲线
,给出下列五个命题:
①存在
,使曲线
过坐标原点;
②对于任意
,曲线
与
轴有三个交点;
③曲线
关于
轴对称,但不关于
轴对称;
④若
三点不共线,则
周长最小值为
;
⑤曲线
上与
不共线的任意一点
关于原点对称的点为
,则四边形
的面积不大于
.
其中真命题的序号是__________ (填上所有正确命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ca0313b09165aaf0c59d7aa431c6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c41b2f7ca11db3aaea46c69286adbce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5fe94874ce576fe36d39457a19b4aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
①存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
②对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ede11e7554a7b18b81b4ebeade30592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db20358d559aa21850fcb19e15ac9cb5.png)
⑤曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb45a7ca7f618f3bb506f32ffddbef2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
其中真命题的序号是
您最近一年使用:0次
名校
3 . 已知
为正实数,直线
与曲线
相切,则
的取值范围是___
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c251935d2cfd0fcede0bcf988b35b1e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d169cf7969e371a50a5ca049505ca6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2f6687fac0ebf7bcdbf27c949a0544.png)
您最近一年使用:0次
2018-01-03更新
|
704次组卷
|
4卷引用:河南省洛阳市2016-2017学年高二下学期期中考试数学(理)试题
河南省洛阳市2016-2017学年高二下学期期中考试数学(理)试题黑龙江省哈尔滨市第六中学2016-2017学年高二6月月考数学(理)试题宁夏银川一中2018届高三第五次月考数学(文)试题(已下线)2.2导数的应用[文] -《备战2020年高考精选考点专项突破题集》
4 . 在半径为4的球
的球面上有不同的四点
,
,
,
若
,则平面
被球
所截得的图形的面积_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c5a1a2a7e2a33c13d57bce27e90f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e04a5b59cced25ab7057d03fe3c0ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2017-12-26更新
|
623次组卷
|
3卷引用:河南省洛阳市2017-2018学年高三年级第一次统考数学理试题
解题方法
5 . 正方体
中,
分别是棱
的中点,点
在对角线
上,给出以下命题:
①当
在线段
上运动时,恒有
平面
;
②当
在线段
上运动时,恒有
平面
;
③过点
且与直线
和
所成的角都为
的直线有且只有3条.
其中正确命题为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5f302c1c2f7e1b46cad05594ed672e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adaf72526122c1334e98d6d14b142654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4560fa4ad459b58b723c74bd24e51ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb5255e2159617505e0c87d01437a57.png)
③过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
其中正确命题为
您最近一年使用:0次
6 . 在
中,若
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da8d4202e361b954b284a5d59c9d5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
您最近一年使用:0次
2017-11-27更新
|
1952次组卷
|
2卷引用:河南省豫北豫南名校2018届高三上学期精英联赛数学(理)试题
名校
7 . 已知
且
对任意的
恒成立,则
的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a291d0d32298638e023666ff971d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1285e380ee8e9634fe80a7405b266c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7e4dcebd24c843379926de9c0b780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f25ca6ba3b1abc3443093f32360d1b.png)
您最近一年使用:0次
2017-11-21更新
|
2580次组卷
|
7卷引用:河南省南阳市2018届高三上学期期中质量评估数学(理)试题
河南省南阳市2018届高三上学期期中质量评估数学(理)试题河南省濮阳市南乐县第一高级中学2022-2023学年高三上学期7月月考理科数学试题(已下线)【全国百强校】衡水中学2019届高三开学二调考试(数学理)(已下线)专题3-5 超难压轴小题:导数和函数归类(2)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)重庆市第一中学校2023届高三上学期9月月考数学试题福建省福安市第一中学2023届高三上学期第一次月考数学试题(已下线)第三章 重难专攻(一) 不等式中的恒(能)成立问题 B素养提升卷
8 . 已知方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1db4fb8c3814d4fbc848293205dc26f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5af1a4af4c91de91777cf0dc2f9ff6d.png)
有唯一实数根,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1db4fb8c3814d4fbc848293205dc26f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5af1a4af4c91de91777cf0dc2f9ff6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a363df9127fb019f87ec53470c50dcc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
9 . 在
中,
,
,在边
上存在一点
,满足
,作
,
为垂足,若角
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38f550e95b2950f91e8ec1798b94109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f855c80172c04310d342f82d960011ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca812721698eec68ae6129e1745269c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
名校
解题方法
10 . 数列
满足
,若
为等比数列,则首项
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4258c957eaafe698687ed3be5df15872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
您最近一年使用:0次