解题方法
1 . 已知函数
.
(1)求f(x)的解析式;
(2)若f(x)在[-2,4]上单调递减,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751d07543e375840d9bb5e5f3acc96cf.png)
(1)求f(x)的解析式;
(2)若f(x)在[-2,4]上单调递减,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d7f4ac0a153769b5c0170b3f542eea.png)
您最近一年使用:0次
2022-11-11更新
|
236次组卷
|
2卷引用:河北省2022-2023学年高一上学期期中数学试题
名校
2 . 已知函数
和
,其中
.若函数
与
的图象的一个公共点恰好在
轴上.
(1)求证:
;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea89fb796dea0e3e7571530eaee85bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6076f2c305797168a666280436eb6e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90637dc8dcc96d580e57f5813bad69ba.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
您最近一年使用:0次
解题方法
3 . 已知函数
的图象经过点
和
.
(1)求函数
的解析式;
(2)当
时,求证:
;
(3)设
,记
在区间
上的最大值为
.当
最小时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80027540415bd2b98c9be19e21b5f8d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec40ff4479edca2ed18b6cadb8db72f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b334e2eaa7e8fb79cef8208b56ee4f5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97ab84192e12bb292bc9fbd0b29fbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f4613d8d3adbc2d82be6a56ce18b0fd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf65f3a7b7ee5ca57d632643c63db39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4fdde1f50ccfd1dc264f31b776d9c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4fdde1f50ccfd1dc264f31b776d9c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
名校
解题方法
4 . 设函数
.
(1)若
且对任意实数均有
恒成立,求
表达式;
(2)在(1)在条件下,当
时,
是单调函数,求实数
的取值范围;
(3)设
且
为偶函数,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e25055f7dad5c5ac03ced1301ee0fd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)在(1)在条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99be60f95db4256c52dfcae9d09e42bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6b28c29a9e823cf1d6c764323d7e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b3e1e95ddab02620eff0b5b76f4a084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7d7b76d6b12e13364a4afe7863fdff.png)
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2022-10-30更新
|
415次组卷
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5卷引用:广东省广州市真光中学2022-2023学年高一上学期期中数学试题
广东省广州市真光中学2022-2023学年高一上学期期中数学试题四川省成都市成都市玉林中学2022-2023学年高一上学期期中数学试题(已下线)5.4 函数的奇偶性(3)(已下线)第二章 一元二次函数、方程和不等式(压轴必刷30题4种题型专项训练)-【满分全攻略】(人教A版2019必修第一册)(已下线)期中真题必刷压轴60题(15个考点专练)-【满分全攻略】(人教A版2019必修第一册)
名校
解题方法
5 . 已知函数
.
(1)给出
的一个定义域,使
值域为[8,17];(直接写出结论,不要求证明)
(2)当
时,求
的最小值及对应
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ac9adeaa7b8f53b9ff3b1a92542f21.png)
(1)给出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f309f47dc3acee032d79a6ad4b40e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
您最近一年使用:0次
2022-10-20更新
|
232次组卷
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2卷引用:北京市铁路第二中学2022-2023学年高一上学期期中考试数学试题
6 . 如图所示,在
中,点D是边BC的中点,点E是线段AD的中点.过点E的直线与边AB,AC分别交于点P,Q.设
,
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ee44c8ad5792736787bb903ca273db.png)
![](https://img.xkw.com/dksih/QBM/2022/10/10/3084552225349632/3085931629084672/STEM/99cbf902e79b456d83a8b162745b5770.png?resizew=199)
(1)试用
与
表示
、
;
(2)求证:
为定值,并求此定值;
(3)设
的面积为
,
的面积为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93179982551da01266d5f1bc177fb4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe91df8a5a97bf49ab8004f07f64e908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ee44c8ad5792736787bb903ca273db.png)
![](https://img.xkw.com/dksih/QBM/2022/10/10/3084552225349632/3085931629084672/STEM/99cbf902e79b456d83a8b162745b5770.png?resizew=199)
(1)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228f4ddbb8959f904d71259be7c6ab36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1da92a2fc2ce861e82f7192fe4e648f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b680f91c4a693cc9ab2c23f2e9114ce.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac8a4086cd8af00e89c57fdfd905114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd72016a9855cbf0056ff732fe872612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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2022-10-12更新
|
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3卷引用:江西省赣州市名校2023届高三上学期期中联合测评数学(文)试题
名校
解题方法
7 . 已知不等式
的解集为
,记函数
.
(1)求证:方程
必有两个不同的根;
(2)若方程
的两个根分别为
、
,求
的取值范围;
(3)是否存在这样实数的
、
、
及
,使得函数
在
上的值域为
.若存在,求出
的值及函数
的解析式;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa70fa7eb86c3733e2c1f1c7d07dd802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429fe2f0c8047f941a80b7927e5e095.png)
(1)求证:方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ec28f6f007c118c4fb3dc2e0531ca1.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ec28f6f007c118c4fb3dc2e0531ca1.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/ad4e94463a0f22990789c5494916e844.png)
(3)是否存在这样实数的
![](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/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f4eff3125c5e63a994ba1ad5be58e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499a8449e8bb253065463c23f3ff5860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05dbda3c167874afe3384a90d5f561ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f4eff3125c5e63a994ba1ad5be58e5.png)
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2022-10-10更新
|
688次组卷
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7卷引用:广东省东莞市东华高级中学2020-2021学年高一上学期前段考(期中)数学试题
名校
解题方法
8 . 设函数
,
(1)证明
是偶函数;
(2)画出这个函数的图像;
(3)指出函数
的单调区间,并说明在各个单调区间上
是增函数还是减函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b273dab294a02d82d412f920b876267.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)画出这个函数的图像;
(3)指出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2022-09-21更新
|
557次组卷
|
3卷引用:浙江省之江中学2022-2023学年高一上学期期中数学试题
9 . 已知函数
,
.
(1)若
,求函数
在
的值域;
(2)若
,求证
.求
的值;
(3)令
,则
,已知函数
在区间
有零点,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfc59e88149b506865a18f249c56f68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a768cc949e4d1ca3effaa7f82b2156.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926b791b23dce655cb9230b416c0c42a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66ef59c3970f3581a5ea29e21fd564d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e4e14e7cce3bcd0371d32858b0a2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef502f2520c255f8c7281e343ce2357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdaaf67e089d2dd8468fbaba13d01b52.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a80661feb5630831d21c3d7a328c17ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc38c68db969c0a77847417bdc732d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e593828316139a54019e352dec883f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dccf1f9faac56117d6d3dd1dddd286d.png)
您最近一年使用:0次
2022-06-24更新
|
2766次组卷
|
4卷引用:四川省成都市成都市树德中学2022-2023学年高一上学期期中数学试题
名校
10 . 已知
,函数
.
(1)当
,请直接写出函数的单调递增区间和最小值(不需要证明);
(2)记
在区间
上的最小值为
,求
的表达式;
(3)对(2)中的
,当
,恒有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea1b3e4e1f501d511802734e0d556d0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(3)对(2)中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5534884e6450e898d84bdb2b42d4f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-06-23更新
|
3381次组卷
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8卷引用:广东省深圳市福田区红岭中学2022-2023学年高一上学期期中数学试题