1 . 已知函数
.
(1)当
时,求
的极值;
(2)若
恒成立,求实数
的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b48e39514c9e9909e94fc5745355cfa.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6274961e116aff1637d4bc3ac4944ce5.png)
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2024-05-25更新
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5卷引用:重庆市第十八中学2023-2024学年高二下学期中期学习能力摸底考试数学试题
名校
解题方法
2 . 对于
,
,
不是10的整数倍,且
,则称
为
级十全十美数.已知数列
满足:
,
,
.
(1)若
为等比数列,求
;
(2)求在
,
,
,…,
中,3级十全十美数的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b1cfbfdf8e1b22aab9583e12e3449c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f0e26992724eafcba06d163d9ff470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4217b1854fee34983372bf4f3a877d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdf53108bee755f5aa9a34ea4d163e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c2b5e218eb815213d8bc0ce9a06ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac416116febcf793fee4ccc78a27b15.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0f62daf8552adeb241c9b54a57cd83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)求在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11075f2c574b6c59b97fb3038000e38.png)
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2024-05-14更新
|
793次组卷
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6卷引用:重庆市第一中学校2023-2024学年高二下学期5月月考数学试题
名校
解题方法
3 . 不经过第四象限的直线
与函数
的图象从左往右依次交于三个不同的点
,
,
,且
,
,
成等差数列,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4c6592bbbee1498da630bd431299fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132668fc41c8266ba917dc5b4995c6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0a4d02005ed2c048b59856ad98c030.png)
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2024-05-14更新
|
220次组卷
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2卷引用:重庆市第一中学校2023-2024学年高二下学期5月月考数学试题
解题方法
4 . 若不等式
对任意的
恒成立,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b183b53013253e4410e7597087222a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c173a7bdba9681b71d7348e53b9af6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-04-20更新
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2093次组卷
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5卷引用:重庆市部分学校2023-2024学年高二下学期4月阶段性测试数学试卷
5 . 若实数
,
分别是方程
,
的根,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c8cd775fba88d87428dab41260b308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b953e06f7a01faeace7176ddd2d77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3049273653a7a4d7f6252d0c1f05164.png)
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2024-04-15更新
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2卷引用:重庆市拔尖强基联盟2023-2024学年高二下学期三月联合考试数学试题
名校
解题方法
6 . 帕德近似是法国数学家亨利
帕德发明的用有理多项式近似特定函数的方法.给定两个正整数
,
,函数
在
处的
阶帕德近似定义为:
,且满足:
,
,
,
,
,注:
,
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee7bb49247387a9028602315729f8d7.png)
已知函数
.
(1)求函数
在
处的
阶帕德近似
,并求
的近似数
精确到![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e2a6b3944261bb5b2e0244d05af639.png)
(2)在(1)的条件下:
①求证:
;
②若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16563cfb206d0394cac2a0c2595dda6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcb8c6a69df1a0deaba265e204d5f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047a8c1ed551fccee1c1848746c5f282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72029562177dfc99a171c9013eb90227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee7bb49247387a9028602315729f8d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4573475f70860a3d99b92a329d0d07f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca214aa6276b96d67a451c3fdbc59b3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba6d8d56270fc72edd1af793542c036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030c5fc27fb5c07e4d6c913653af07ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f8f07548edb2d114804fbfca1eee55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee7bb49247387a9028602315729f8d7.png)
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35dd621776dee688a0175a1abe39c258.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35dd621776dee688a0175a1abe39c258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40765d09390381658d5b4dc0160366cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5c1ae8ac7a70fcab9a5daca65ccd99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e2a6b3944261bb5b2e0244d05af639.png)
(2)在(1)的条件下:
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec667cb20a6d670c47adfca4e4f5dd5.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad7d4b49b53e6d1aae16e515cf0975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-04-13更新
|
1081次组卷
|
7卷引用:重庆市万州第二高级中学2023-2024学年高二下学期期中质量监测数学试题
重庆市万州第二高级中学2023-2024学年高二下学期期中质量监测数学试题山东省菏泽第一中学人民路校区2024届高三下学期3月月考数学试题(已下线)模块3 第8套 全真模拟篇安徽省黄山市2024届高中毕业班第二次质量检测数学试题(已下线)专题12 帕德逼近与不等式证明【练】天津市武清区杨村第一中学2024届高考数学热身训练卷河北省秦皇岛市部分示范高中2024届高三下学期三模数学试卷
7 . 已知
是自然对数的底数,常数
,函数
.
(1)求
、
的单调区间;
(2)讨论直线
与曲线
的公共点的个数;
(3)记函数
、
,若
,且
,则
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685470105661fcc6c1c0245acf65267a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcafc95a0527841c29a58d4f7d85e232.png)
(2)讨论直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d622e7e56b7d5f621895e4d2f5eccee.png)
(3)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca968e2c3e04e2db3cd7a2f4183b0a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e2551c314c6ea951fca591bf87a6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78debcc921ca3a1b7acccd5809ec485b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-04-07更新
|
636次组卷
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2卷引用:重庆市垫江第二中学2023-2024学年高二下学期第一次月考数学试题
名校
解题方法
8 . 当
时,
恒成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e47b211e69b03be814fa39c1e46a43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4卷引用:重庆市第十八中学2023-2024学年高二下学期中期学习能力摸底考试数学试题
重庆市第十八中学2023-2024学年高二下学期中期学习能力摸底考试数学试题河北省承德市2023-2024学年高二下学期3月阶段性考试数学试卷(已下线)模块一 专题6 导数在不等式中的应用B提升卷(高二人教B版)河南省实验中学2023-2024学年高二下学期期中考试数学试卷
9 . 对于整系数方程
,当
的最高次幂大于等于3时,求解难度较大.我们常采用试根的方法求解:若通过试根,找到方程的一个根
,则
,若
已经可以求解,则问题解决;否则,就对
再一次试根,分解因式,以此类推,直至问题解决.求根的过程中常用到有理根定理:如果整系数方程
有有理根
,其中
、
,
,
,那么
,
.符号说明:对于整数
,
,
表示
,
的最大公约数;
表示
是
的倍数,即
整除
.
(1)过点
作曲线
的切线,借助有理根定理求切点横坐标;
(2)试证明有理根定理;
(3)若整数
,
不是3的倍数,且存在有理数
,使得
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d150dc687f9ff11ee3213ec03864e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa90ca9cbf408140831d56638ac9e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbe0c7e53077a592e5a6dd5f33d4d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67587f2813cc9ed217fa61b82d83d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e22570cf8b339a70e8ea0bb696b376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9040a38c1948ba9c5df2a42d01218c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df03ecaa1fdf8814e014245b3dc5523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08afab5098dc7af7074d9cb3c246282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423cfd9d544692727b99a5878f7e9a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.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/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e280d0441a31fdbef3ce192d8d8f8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d0660d4864c16652a6b27337462b3f1.png)
(2)试证明有理根定理;
(3)若整数
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65c4954c0a61e12286e9ce9b7ca2010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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10 . 已知函数
.
(1)讨论
的单调性;
(2)设
,求证:当
时,
在区间
上有且仅有2个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92f203404d632cfa8283dbb19276346.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8a5aecc557bc20fa9d0ba2729f1c74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6664c38250ffff0722982703cc8ea33b.png)
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