解题方法
1 . 设
是定义在
上的奇函数,且对于任意的实数
都有
成立,若实数
满足不等式
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc886207105c2f4727d1f5bb2c59a4aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3583740a920b38a97395998ab2179224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
A.2 | B.3 | C.4 | D.9 |
您最近一年使用:0次
名校
2 . 设
为定义在
上的增函数,且
,对任意
,都有
.
(1)求证:
;
(2)求证:
;
(3)若
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1561755ad704b15aa34bf1c150f2b8cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198f4f70e430ac5e70bcc06b37c2e289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ccf360767df424d35336afc49a7f807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be401d270c26d386b23c92716825cd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f100e4f68fbcf4127356fa2379073c.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b6c2d9e804dc87e5da1eee9fdd3e88.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f009f28b4db9c8c0b88b83d361cdfef.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b702b2f58ec31eb8c08fc9b0cbf68a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c2d5c6a9589c34fdc11c291bab72fc.png)
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2017-10-24更新
|
1709次组卷
|
3卷引用:河南省商丘市第一高级中学2017-2018学年高一上学期第一次月考数学试题
3 . 已知
,函数
在区间
上的最大值为
,最小值为
,
.
(1)求
的函数表达式;
(2)判断并证明函数
在区间
上的单调性,并求出
的最小值;
(3)设函数
,
,已知
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0eb4e421bb2adeba0cb5af9e829348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ca9aa77f3c45afd7f2f582e52c8fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34ce730f711c09909d53806fe2330a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a239d924a26dbc7f33052c63a20a327a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaaf78a3b3e2a0b6cc9ca282fe4837eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f154081c0393e4e334f833ad556af0f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(2)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f92e2186c42957772a9490cd6221a61b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711e6d1c35962a5b4bdc49d85322dc52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9913bb4ebb9cc32e9494345892ae032d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851b26c762f195824bdc56cc40696665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d22d807b8af8928aa2afc7172015f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2012·福建宁德·二模
名校
4 . 已知
时,函数
,对任意实数
都有
,且
,当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc9348c9def7fbf5991ec2839751ada.png)
(1)判断
的奇偶性;
(2)判断
在
上的单调性,并给出证明;
(3)若
且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97b02cc48dab7860567b6c7762b2e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0077334d83a27f711b308551eaf14f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05486718d0f498abca5c2c21912bb26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc9348c9def7fbf5991ec2839751ada.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc796118b6cc332ab1c14a07e304c1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-09-17更新
|
2306次组卷
|
6卷引用:河南省南阳市第一中学2018届高三上学期第二次考试数学(文)试题
河南省南阳市第一中学2018届高三上学期第二次考试数学(文)试题(已下线)2012届福建省福鼎一中高三第二次质检理科数学2016-2017学年河北省卓越联盟高一上学期月考一数学试卷安徽省滁州市定远县育才学校2017-2018学年高二(普通班)下学期期末考试数学(理)试题安徽省六安市毛坦厂中学2019-2020学年高三(应届)上学期9月月考数学(理)试题(已下线)考点04 函数的单调性与奇偶性-2021年新高考数学一轮复习考点扫描
名校
解题方法
5 . 设等差数列
满足
,
,数列
的前
项和记为
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664847622169bab156cb111337cd039e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe6a8f667589234615b63481f1faaf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2017-06-15更新
|
934次组卷
|
4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
名校
6 . 已知定义域为
的函数
是奇函数.
(Ⅰ)求
的值;
(Ⅱ)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453bea96a2581889ea6fea4a9699cd4c.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0654e1172b28822855189f2408ecd2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d78e40f6632dcd94d6a012dd9a2489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-04-08更新
|
2044次组卷
|
7卷引用:2016-2017学年河南省八市高一下学期第一次联考理科数学试卷
7 . 已知函数
,![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/d89ca161a445413c9db4a9715a63641f.png)
(1)用定义法证明
在
上是增函数;
(2)求出所有满足不等式
的实数
构成的集合;
(3)对任意的实数
,都存在一个实数
,使得
,求实数
的取值围.
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/999cfaa83f9c45bbb4b356b1fe2ef26b.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/d89ca161a445413c9db4a9715a63641f.png)
(1)用定义法证明
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/b518776a5c614ce8acfb0142e11e7173.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/89c6efd13b344ef3989687e35a9f869a.png)
(2)求出所有满足不等式
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/188b0aa7cb3143ef93704ce58c4df648.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/6063c96f8bec46b69bf17ef45baf3d68.png)
(3)对任意的实数
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/47d5418ca895474cbe6e5055f55aec89.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/fd0b7b5e6a104c39a085c0580279f355.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/228bccdfb29641588ee30b55f9ca7f12.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/485bcc07cf2649e4bec1ef3499c3de2f.png)
您最近一年使用:0次
8 . 已知函数
定义在区间
内,对于任意的
,有
,且当
时,
.
(1)验证函数
是否满足这些条件;
(2)判断这样的函数是否具有奇偶性和单调性,并加以证明;
(3)若
,求方程
的解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac82ed0d19b3d6989b79781840ebba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f11ffe1ed97e1179178c6698136aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608fd0dfd30079f4337ef571571eb287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18faa17bb2b0660e8270727077d9f15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e2d2273f9bb50a7081c8c79854d3d4.png)
(1)验证函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/badc03e9a9cff45b6dbed8c771ab58bc.png)
(2)判断这样的函数是否具有奇偶性和单调性,并加以证明;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf88a72cdffe3cbcee8cd1a3b0ce19ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165a734c7dc705794bddcb6c73651565.png)
您最近一年使用:0次
解题方法
9 . 已知函数
的定义域的
,当
时,
,且对任意的实数
、
,等式
成立,若数列
满足
,且
,则下列结论成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54dad48527a47eab4a5916ab0421cc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6585b5af98d4c7801c1edaf2e6ead0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f4871e9765c531cc70de3bc51eaa8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcde20ce2f58c92c832ad5f21b38b5.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
1646次组卷
|
3卷引用:2016届河南省洛阳市高三考前练习二理科数学试卷
解题方法
10 . 已知
是定义在
上的奇函数,且
,若
,
时,有
成立.
(1)判断
在
上的单调性,并证明;
(2)解不等式:
;
(3)若当
时,
对所有的
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0af419f4bc6f089e3304a477589d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf9c036752ac33755f00b5b99efb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02d0bf77bc0ecfbc5cdf695ac2e9693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6275c4332d3fb5b4dcb7af89adad56.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b716382a3b824dda5c34f6242c184ae.png)
(3)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b2ea97ae84849466c6f21de91f0b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046b90faec9895ad9642e6451cd3f739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc70276e8bba4f3a519be50442f0f21c.png)
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