解题方法
1 . 已知函数
,
,将
在区间
上的最大值记为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/47e88536-2bfa-463c-9bf3-67b8e0a5aa12.png?resizew=187)
(1)当
时,画出函数
的图象;
(2)求
的表达式及
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857f919d6df4cc632e1a607cee3ed0f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44aca6c00903b9dd306287ba3bb91035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/47e88536-2bfa-463c-9bf3-67b8e0a5aa12.png?resizew=187)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
您最近一年使用:0次
名校
2 . 已知函数,
.
(1)画出
的大致图象,并根据图象写出函数
的单调区间;
(2)当
且
时,求
的取值范围;
(3)是否存在实数a,b,
使得函数
在
上的值域也是
?若存在,求出a,b的值,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b99498c2fe4079a8757456e0585ada7b.png)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba934874cc9f2ab272fdff67ea23bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bc078fda140ac95a07b73bcaacf824.png)
(3)是否存在实数a,b,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5908da764a876b13a321d5317388f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
您最近一年使用:0次
2020-02-29更新
|
579次组卷
|
2卷引用:江苏省南通市第一中学2018-2019学年高一上学期第一次段考数学试题
名校
解题方法
3 . 函数
.
(1)画出函数
的图象,并写出单调区间;(不要求证明)
(2)是否存在正实数
,使函数
的定义域为
时值域为
,若存在,求
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb1c53efea67064ff2ddac3ceea3378.png)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b70aeff7c01e637f9caac346798ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138a4d0e1b66ac9445e6f4a5af52fe5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
您最近一年使用:0次
名校
4 . 定义实数a,b间的计算法则如下
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/1c8a1b60-8408-47a9-933b-8be15d595099.png?resizew=206)
(1)计算
;
(2)对
的任意实数x,y,z,判断
与
的大小,并说明理由;
(3)写出函数
,
的解析式,作出该函数的图象,并写出该函数单调递增区间和值域(只需要写出结果).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/487458fc996a6d09acc8b9b989b93942.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/1c8a1b60-8408-47a9-933b-8be15d595099.png?resizew=206)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf34ed9e75a68b1883429c35dca0ac21.png)
(2)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028409310ff6d7e339c35953a31c964f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ff836135588935e4485f65942c78bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf326fc21cd68a7584550b27ec7ec7e8.png)
(3)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d106fe5bc22b1166a927c02dd6e9d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
您最近一年使用:0次
2020-02-05更新
|
296次组卷
|
3卷引用:上海市虹口区复兴高级中学2016-2017学年高一上学期期中数学试题
5 . 已知函数
是
的反函数.
(1)当
时,求函数
的最小值
的函数表达式;
(2)若
是定义在
上的奇函数,在(1)的条件下,当
时,
,求
的解析式,并画出
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cf7675fc49cbdf3611ac547d85c8f7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36230c4148343a9f6e0f4d881f2d1786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6306103bd15268cf59ba4f9122e818c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a4b68d7be63ec223f642976a1087ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2428921c82d2ace53ade031fa21fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6ea3f2f9a1c1fa9898e7b7a8246e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
您最近一年使用:0次
2020-01-31更新
|
527次组卷
|
2卷引用:山东省聊城市2019-2020学年高一上学期期末数学试题
6 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defe8603ada1c2de987abfac40501a48.png)
(1)判断函数
的奇偶性
(2)作函数
的简图(在答题卡上作图,不需要写作图过程)并写出函数的单调递增区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defe8603ada1c2de987abfac40501a48.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)作函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
7 . 已知函数
.
(1)作出函数
的图象;
(2)求函数
的单调区间,并指出其单调性;
(3)求
(
)的解的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ff1b22a5530e6692ea856d5ce9274a.png)
(1)作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
您最近一年使用:0次
8 . 已知函数
.
(1)当
时,作出函数
的图象;
(2)是否存在实数a,使得函数在区间
上有最小值8,若存在求出a的值;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/b990451b-0ee8-4e9d-8506-971e6bdba1df.png?resizew=221)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681152a0dfcd3671df75cc67ea942598.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在实数a,使得函数在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f094b4fcb0df74103b78e478bd4448d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/b990451b-0ee8-4e9d-8506-971e6bdba1df.png?resizew=221)
您最近一年使用:0次
名校
9 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/5eedc2cc-bfff-4d1b-b3a4-ff8e8cfd4c15.png?resizew=171)
(1)用分段函数的形式表示函数
的解析式,并画出
在
上的大致图像;
(2)若关于x的方程
恰有一个实数解,求出实数m的取值范围组成的集合;
(3)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7247a12f18390a9f9a997cc87ed6fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/5eedc2cc-bfff-4d1b-b3a4-ff8e8cfd4c15.png?resizew=171)
(1)用分段函数的形式表示函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31bc0c34811edba74dae3fcaed8f577.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874dcc6d4f0abe55891d240b90c5d6bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
名校
10 . 已知
,函数
.
![](https://img.xkw.com/dksih/QBM/2019/11/28/2343659661434880/2344438805454848/STEM/7cd66e253c4c479aa2a17ce8ecfc9f75.png?resizew=357)
(1)当
时,在给出的坐标系中,画出函数
的大致图象,根据图象写出函数
的单调减区间;
(2)讨论关于
的方程
解的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5db51e4fe5e40b38cbc3822c9b8ce9.png)
![](https://img.xkw.com/dksih/QBM/2019/11/28/2343659661434880/2344438805454848/STEM/7cd66e253c4c479aa2a17ce8ecfc9f75.png?resizew=357)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e39a839bbcd0a60be36d76ca594237.png)
您最近一年使用:0次