解题方法
1 . 对于函数
,记
,
,
,…,
,其中
.
(1)若函数
是一次函数,且
,求
的最小值;
(2)若
,且
,求
;
(3)设函数
(
),记
,
,若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c3ef724cecaca2c47141a7452bad48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7d8675718e2188fe0b2ebbea447f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0061853f2b6d34f5401049b4009abf97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d428eec05fdbc57cbfc2c39f5de2574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28652e52c0b02a343e618935ea625cbf.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4ae2013293d7a410d14a0aa4e64c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5461941f8f9b27c21818a0b2f3f48f85.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89991c572d9435a44c7bcca18701cc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6764f456b9b016bceaf5f833fa8848b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ebe22137b9e480e634be2f7d229d45.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e68eab1217d9aa39b712a1cbf8ade02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea88e0629fac4da5f8cdb5eef697ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a347e53d69e6279105061e656d2f5bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf1e97de471ad174a6e9d4c41dafabc.png)
您最近一年使用:0次
解题方法
2 . 某社区计划在长方形空地ABCD上建一座供社区居民休闲健身的小型广场、做如下规划:在空地中的点M处修建一座凉亭,经过点M铺一条直直的小径EF,小径EF把空地分割成两块梯形区域,计划在梯形区域AEFB处修建休憩棋牌区,在梯形区域
处修建运动健身区,已知点E,F分别在AD和BC边上,
,其中
米,
米,点M到边AB的距离为30米,到边BC的距离为40米,设
米,
米.(参考数据:
)
(1)设小径
的长为
米,若
,写出
的所有可能取值组成的集合;
(2)求
的值,并求代数式
的最小值;
(3)计划在梯形区域
上,修建一个以点
为顶点,其余各顶点分别在
上的正方形耐踏草坪,设草坪的边长为
米,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10048b788ecddd1d73b853cb277fb07a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79bc8d35f268b95310e7f2a3bba612cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a3debb802dd4f3e774b16ad1c154ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e223b03195218005d5c89bd004e6880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffcb0816ee2da7ddd071156a900f9eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e374298a003f568886dc459f02a41a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f85e62b60cf10d4f6a8a366f4765d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/21cf500b-f98f-4a2a-abb5-da1468d7e664.png?resizew=177)
(1)设小径
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a2156cbb9b81b643fb42c853b03b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55db12bc9a3b7bd2e6decaaea6ba387e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d760204a261aae858ee3e353882899.png)
(3)计划在梯形区域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bedde879f99aed69d745d5ec8fe62084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4005a423bea031b020f1894aa528f00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019bce8bf83275326a513580e329f303.png)
您最近一年使用:0次
3 . 若函数
在定义域
上满足
,且
时
,定义域为
的
为偶函数.
(1)求证:函数
在定义域上单调递增.
(2)若在区间
上,
;
在
上的图象关于点
对称.
(i)求函数
和函数
在区间
上的解析式.
(ii)若关于x的不等式
,
对任意定义域内的
恒成立,求实数
存在时,
的最大值关于a的函数关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea20bf4103d4a86ce2dedc8cbf73498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d991a665834f1957063731202084570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c01b3dea6d0449097da0edc9130ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b577bf976fc3acd92b4af89be960359f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e110165a664ac7a77e70a6a46078602b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
(i)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d991a665834f1957063731202084570.png)
(ii)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2846c1cedbe564d20873d2b4d6f426aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6232dc74b15e4acb0ac3482a1cbe6a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/157416e0bb98baff8059b9ef0e123ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-12-14更新
|
944次组卷
|
6卷引用:山东省德州市万隆中英文高级中学2023-2024学年高二下学期6月月考数学试题
山东省德州市万隆中英文高级中学2023-2024学年高二下学期6月月考数学试题辽宁省大连市2022-2023学年高一上学期期末数学模拟试题(已下线)高一上学期期末考试解答题压轴题50题专练-举一反三系列福建省福州市九师教学联盟2023-2024学年高一上学期1月联考数学试题江西省上饶市广丰区丰溪中学2023-2024学年高一上学期期末模拟数学试题(已下线)高一数学开学摸底考 01-人教A版2019必修第一册全册开学摸底考试卷
4 . 德国数学家康托尔是集合论的创立者,为现代数学的发展作出了重要贡献.某数学小组类比拓扑学中的康托尔三等分集,定义了区间
上的函数
,且满足:①任意
,
;②
;③
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b39bbfd4894f4d2ca18473a3e42f82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ee7abd882ba99660bca68ebf544cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7f3dbe1155bef98639f30a7d24f304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfca9e2cea383880fb2dfe0e71b9e2b.png)
A.![]() ![]() | B.![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
您最近一年使用:0次
2023-11-29更新
|
215次组卷
|
2卷引用:山东省烟台市2023-2024学年高一上学期期中数学试题
解题方法
5 . 下列有关函数的命题正确的是( )
A.已知函数![]() ![]() ![]() ![]() |
B.函数![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-10-25更新
|
449次组卷
|
2卷引用:山东省临沂第十八中学2023-2024学年高一上学期10月阶段性测试数学试题
解题方法
6 . 下列命题,判断为真的是( )
A.函数![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.设![]() ![]() ![]() |
D.函数![]() ![]() |
您最近一年使用:0次
7 . 设计一个印有“红十字”logo的正方形旗帜
(如图).要求“红十字”logo居中,其突出边缘之间留空宽度均为2cm,“红十字”logo的面积(阴影部分)为
.
的长度不小于
的长度.记
,
.
![](https://img.xkw.com/dksih/QBM/2023/1/16/3153900826542080/3155389689520128/STEM/5f0fbb8a195b4309b2a0db5f3789e42d.png?resizew=249)
(1)试用
表示
,并求出
的取值范围;
(2)当
为多少时,可使正方形
的面积最小?
参考结论:函数
在
上是减函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fe35a459a9ee5aeac9e52e88e723b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ec05e3cec27677ded7b4aecaa62d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95132cf0852562646447baa730daf866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e47e9414c1ca05f737e86e26874bdf.png)
![](https://img.xkw.com/dksih/QBM/2023/1/16/3153900826542080/3155389689520128/STEM/5f0fbb8a195b4309b2a0db5f3789e42d.png?resizew=249)
(1)试用
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
参考结论:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3717ef8837dc2941ed6a187bb1ff1148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5adca923811433f158d3803d509c309.png)
您最近一年使用:0次
2023-01-18更新
|
310次组卷
|
4卷引用:山东省临沂市郯城县美澳学校2022-2023学年高一上学期期末数学试题
山东省临沂市郯城县美澳学校2022-2023学年高一上学期期末数学试题江苏省徐州市等3地2022-2023学年高一上学期期末数学试题江苏省海安市2022-2023学年高一上学期期末数学试题(已下线)期末考试押题卷三(考试范围:苏教版2019必修第一册)-【帮课堂】(苏教版2019必修第一册)
解题方法
8 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f98703a94efdf092738b9b9cc431b2e.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2023-01-14更新
|
394次组卷
|
2卷引用:山东省青岛市2022-2023学年高一上学期期末数学试题
9 . 记无理数
小数点后第
位上的数字是
,则
是
的函数,记作
,定义域为
,值域为
,其下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ea49fbffe419f4d551ce9964ca4b24.png)
![](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/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab5d593f91925250ae59eba2e3105880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.值域![]() ![]() |
B.函数图像![]() |
C.![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次
2023-01-14更新
|
271次组卷
|
2卷引用:山东省临沂第二中学2022-2023学年高一上学期期末试题数学试题
名校
10 . 下列说法正确的是( )
A.![]() ![]() |
B.已知a,b为非零实数,且![]() ![]() |
C.若等式的左、右两边都有意义,则![]() |
D.关于函数![]() ![]() |
您最近一年使用:0次
2022-12-26更新
|
721次组卷
|
4卷引用:山东省青岛市青岛第五十八中学2022-2023学年高一上学期期末数学试题