1 . 已知
,函数
=
.
(1)求
的最大值:
(2)若关于
的方程
有实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca6c00d9caa585acafc4741879e85a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7cbca15415d709fccec79a0a836729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-12-29更新
|
493次组卷
|
2卷引用:辽宁省实验中学2017-2018学年高一上学期期中阶段测试数学试题
名校
2 . 已知函数
,满足
.
(1)求常数
的值;
(2)解关于
的方程
,并写出
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6873440e3790042ddaf09d3173126d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d02fc47b8a3f290e375cfe31fc1074.png)
(1)求常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b4c43049c1dea26866d1644fa869ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
3 . 求k为何值时,方程|3x-1|=k无解?有一解?有两解?
您最近一年使用:0次
名校
解题方法
4 . 已知定义在实数集
上的奇函数
,且当
时,
.
(1)求函数
在
上的解析式;
(2)判断
在
上的单调性;
(3)当
取何值时,方程
在
上有实数解?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba4fd0990bf06bb09edf1d946be657e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8f1677070e74433cf6e6474f0df25c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
您最近一年使用:0次
5 . 已知函数
是定义在
上的奇函数.
(1)求
的值及方程
的解;
(2)当
时,求函数
的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49a7b607c855c8f289c9fa376a79d5bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb381ac86308c6249bc7e8737cdc668d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6612612fc6ac4a8b0d000e9140333750.png)
您最近一年使用:0次
6 . (
)求函数
的零点.
(
)试确定关于
的方程
的解的个数.
(
)如果(
)的解记为
,且
,
,那么
的值是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fde243323768ea6675b547764b3287.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2fa28dbe6d78f9fed2739d8b3e7d1a.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c76ed5152d53d77dc66b02f4296085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a173784888adf2946382fa093ba53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
7 . 如图所示,定义域为
上的函数
是由一条射线及抛物线的一部分组成.利用该图提供的信息解决下面几个问题.
![](https://img.xkw.com/dksih/QBM/2017/11/14/1817285750546432/1818552665243648/STEM/428dc25527904650b6033acf7b9b588a.png?resizew=166)
(1)求
的解析式;
(2)若
关于的方程
有三个不同解,求
的取值范围;
(3)若
,求
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f545a87bd651b061768225748b78c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://img.xkw.com/dksih/QBM/2017/11/14/1817285750546432/1818552665243648/STEM/428dc25527904650b6033acf7b9b588a.png?resizew=166)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebeb4e3c8892c25f349a368b05b992d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2017-11-16更新
|
2067次组卷
|
6卷引用:河南省洛阳市2017-2018学年高一上学期期中考试数学试题
8 . 已知函数f(x)=lg(3x-3).
(1)求函数f(x)的定义域和值域;
(2)设函数h(x)=f(x)-lg(3x+3),若不等式h(x)>t无实数解,求实数t的取值范围.
(1)求函数f(x)的定义域和值域;
(2)设函数h(x)=f(x)-lg(3x+3),若不等式h(x)>t无实数解,求实数t的取值范围.
您最近一年使用:0次
2017-09-10更新
|
1005次组卷
|
4卷引用:广西钦州市钦州港经济技术开发区中学2017-2018学年高一上学期开学考试数学试题
广西钦州市钦州港经济技术开发区中学2017-2018学年高一上学期开学考试数学试题2014-2015学年山东枣庄薛城舜耕中学高一上学期10月月考数学试卷(已下线)4.4.1、4.4.2 对数函数的概念、图象和性质(课时作业)-2020-2021学年上学期高一数学同步精品课堂(新教材人教版必修第一册)贵州省遵义市播州区2022-2023学年高一上学期期末考试数学试题
解题方法
9 . (1)已知
,求x的取值范围.
(2)若
为方程
的两个实数解,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192c6c837593b6a8a54b71a109efd0db.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035734be53bbfa80e340102915c8c4dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
您最近一年使用:0次
10 . 已知函数
若方程
无实数解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191019bcf8440b2eedbcf18728bbcfea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb101c5df08aa35ae24a6416840b199b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次