2021高二·江苏·专题练习
1 . 若
,
,
,对任意
,总存在唯一的
,使得
成立,则实数a的取值范围____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0892c1433dd7d9fc164548e87278046d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08713253cdb10b55486c7fdff168577a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81efa4a3fd5330631243236744d6143a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c99f02da3bc1f7c1675b1009f90947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
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2 . 已知P是曲线
上的点,Q是曲线
上的点,曲线
与曲线
关于直线
对称,M为线段PQ的中点,O为坐标原点,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcac32c5bb4ed1f5df70cbcea50e05f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b5062be5cf27ae8089ad0c25d1b7c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3d833dad7bda8887fdfcaf00bb4c49.png)
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2020-03-13更新
|
1491次组卷
|
9卷引用:2020届福建省漳州市高三下学期(线上)适应性测试数学(文科)试题
2020届福建省漳州市高三下学期(线上)适应性测试数学(文科)试题(已下线)专题02 函数-2020年高三数学(文)3-4月模拟试题汇编甘肃省张掖市山丹县第一中学2019-2020学年高二下学期期中考试数学(理)试题(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)(已下线)专题02 函数的综合应用(已下线)专题08 导数与函数综合压轴(选填题)-2(已下线)专题01 函数(第二篇)-备战2020高考数学黄金30题系列之压轴题(新课标版)(已下线)专题02 函数的综合应用-2(已下线)专题8 导数中有关距离最值问题(每日一题)
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3 . 已知函数
,若关于
的方程
在定义域上有四个不同的解,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c427e8d4ace5bf833ea89410e1465fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dc6d0827a159050e3fa55164f258b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-04-13更新
|
1342次组卷
|
5卷引用:2019届江苏省百校联考高三数学试题
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4 . 已知实数
、
、
满足
,
下列命题中:①
;②
;③
;④
的最小值是
,所有真命题为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0c4f061b8976df247e6b6d71165f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915ad1a611b5edd3e8f743a9e2e234aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd517469c51c70ccd4ef71a190aa445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5528a56337cf4ede5f53b206de7fa24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad9de54606c4a72d0f8decb6b0e63b2.png)
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5 . 设
,
,
,将
的最小值记为
.则当
是偶数时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
__________ ;当
是奇数时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8ae469587300aece24a0599a630c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ff741c0506b0619fe6c7b1990013af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
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6 . 杨辉三角,又称帕斯卡三角,是二项式系数在三角形中的一种几何排列.在我国南宋数学家杨辉所著的《详解九章算法》一书中用如图所示的三角形解释二项展开式的系数规律.现把杨辉三角中的数从上到下,从左到右依次排列,得数列:
.记作数列
,若数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e8149e93e8622a109580970db5abfd.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154febe3c6f31577c39ddc619450c6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e8149e93e8622a109580970db5abfd.png)
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