解题方法
1 . 定义在
上的函数
,满足
,对于任意的
都有
成立,并且
,使得
.
(1)判断函数
的单调性,并证明;
(2)若
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092431a9943a565a117b52344b567470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756cd04fb04459ef15b1d37c9bb88e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9495589e8fc068d51c8f2a09af841403.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/144e44feec7d20af900888481082a954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d25518faff49f884d9ba79d8d603634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . (1)已知
,求证
;
(2)利用(1)的结论,证明:
(
且
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d100c22435a23e017cfe6f535379d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e793a22eefbb0c5252b15dac42a0769.png)
(2)利用(1)的结论,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb38b30ef5a3de081c41f92ad2992b7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
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名校
解题方法
3 . 已知
,
都为正数,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf913c92060a7bad4de1ee8c04d011e.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2023-12-12更新
|
865次组卷
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5卷引用:安徽省阜阳市第一中学2023-2024学年高一上学期数学竞赛试题
名校
解题方法
4 . 已知函数
为
上的函数,对于任意
,
都有
,且当
时,
.
(1)求
;
(2)证明函数
是奇函数;
(3)解关于
的不等式
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32447060a910faf370a7715ecf4c97e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104fc7daa1aaefd69764e2616109a4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60cf12a81b11e33356fe7e1c9e3d0b9.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb9227f0443a5249d9027d831f87b6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
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2023-12-12更新
|
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3卷引用:安徽省阜阳市第一中学2023-2024学年高一上学期数学竞赛试题
安徽省阜阳市第一中学2023-2024学年高一上学期数学竞赛试题江苏省宿迁市泗阳县桃源路中学2023-2024学年高一上学期期中模拟二数学试题(已下线)专题03 函数性质的综合问题-【寒假自学课】(人教A版2019)
5 . 定义在
上的函数
,当
时,
,当
时,
,若关于
函数
在定义域内有四个零点,则实数
的取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe36806b8bad2756bedb1249f7afb75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df280046be1a000d06a7705a703c2e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3de60d9dd50171aa0543d1176c58eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-09更新
|
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2卷引用:安徽省示范高中培优联盟2023-2024学年高一上学期冬季联赛数学试题
名校
6 . 已知函数
,其中
.
(1)若存在
,使得
,求
的最小值;
(2)令
,若关于
的方程
有两个根
,求当
时,实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e349f49908801a73999320f7a49820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
(1)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1937d83a1f8f6a980d407360e9e81efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e522c7f5814c715334b01c532ef6de8a.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d480ff89c82f1e2c16526c2e41851b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2818807dce7e9ec5514de572c3cc644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03cfa6139f43d02631a50e42fc3b8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-12-09更新
|
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2卷引用:安徽省示范高中培优联盟2023-2024学年高一上学期冬季联赛数学试题
名校
解题方法
7 . 若存在正实数x,y满足于
,且使不等式
有解,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47330ed8e6940a3b13a76cf6ea16d3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8e777cdc578e8ec78dd2f70df69859.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-11-28更新
|
1288次组卷
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10卷引用:安徽省阜阳市第一中学2023-2024学年高一上学期数学竞赛试题
安徽省阜阳市第一中学2023-2024学年高一上学期数学竞赛试题河北省沧州市部分学校2023-2024学年高一上学期11月月考数学试题甘肃省庆阳市华池县第一中学2023-2024学年高一上学期期中考试数学试题内蒙古自治区鄂尔多斯市鄂托克旗四校联考2023-2024学年高一上学期期中数学试题山西省朔州市怀仁一中2023-2024学年高一上学期期中数学试题(已下线)高一上学期期末复习【第二章 一元二次函数、方程和不等式】(拔尖篇)-举一反三系列河北省唐山市第十二高级中学2023-2024学年高一上学期12月月考数学试题云南省楚雄市东兴中学2024届高三上学期12月月考数学试题(已下线)第一章 集合、常用逻辑用语与不等式 专题3 不等式中的最值(范围)问题江苏省无锡市天一中学2023-2024学年高一上学期12月阶段测试数学试卷
解题方法
8 . 已知函数
,且对一切
,都有
.
(1)将
分别表示成关于
的函数,并求出
的取值范围;
(2)对于给定的
,求
在区间
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad9a11b81b7a8643005608eacc7f9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7df44f0187020c616149a2528a9e0df.png)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对于给定的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c737df907946dd7ebcc685f1aa432c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa0031624ea9a7189df816a94739f9f.png)
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名校
解题方法
9 . 数列
满足:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784a5b34eeb467bd68c7a3d1531136ab.png)
,
.
(1)求数列
的通项公式;
(2)若
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784a5b34eeb467bd68c7a3d1531136ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456db920cc6b24c81d8d606920e4949b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba37e3bf20792d2acb4487f2469cfe7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2023-05-20更新
|
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3卷引用:安徽省太和中学2022-2023学年高二下学期数学竞赛试题
名校
10 . 在递减等比数列
中,
,
是方程
的两根,若数列
前
项积为
,则当
取得最大值时,
的值为
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/682bf190fe598c0a653026c14dfe256f.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/392a8f641017f5df07890012bd80eec6.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/0f3cb8d72bb2e281b943b3b430138ef7.png)
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