解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a62eaa217135eabb48e71afc46d657.png)
(1)当
,证明函数在
上单调递减;
(2)当
时,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a62eaa217135eabb48e71afc46d657.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7020a6b646f85f77b4c58b3814b3426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0cae1a27e3ba3fd1f2909bf46008524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-07-15更新
|
1135次组卷
|
5卷引用:贵州省遵义市2021-2022学年高一下学期期末质量监测数学试题
贵州省遵义市2021-2022学年高一下学期期末质量监测数学试题贵州省遵义市2021-2022学年高一下学期期末质量监测数学试题(已下线)突破3.2 函数的基本性质(重难点突破)河北省行唐启明中学2022-2023学年高一上学期11月月考数学试题(已下线)3.2+函数的基本性质-【冲刺满分】
名校
2 . 已知函数
在
上为奇函数,
,
.
(1)求实数
的值并指出函数
的单调性(单调性不需要证明);
(2)设存在
,使
成立;请问是否存在
的值,使
最小值为
,若存在求出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7652a7606a7c65ffd9f46318f2a57f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f78be1e7722a2b5278223669dffcbfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1359b9d7aac57284a7886ab2a7b1b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459c84c9addfbd1cdd0a877ba7c584e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-01-12更新
|
554次组卷
|
6卷引用:江苏省扬州市宝应中学2022-2023学年高一上学期期末数学试题
名校
解题方法
3 . 已知定义在
上的函数
满足:①对任意的
,都有
;②当且仅当
时,
成立.
(1)求
;
(2)用定义证明
的单调性;
(3)若对
使得不等式
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd29ef32d9bc2e32ef2b8639b57dc9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb3491851f0ca81d2649b5c7b5e41170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb07fc041df359b25b6b47bcc4d024e.png)
(2)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(3)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87008291cdba83461d58dbc9426d777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1a0e74cdd1b88109f7da0c9d5d8a72.png)
您最近一年使用:0次
2022-12-09更新
|
1448次组卷
|
6卷引用:四川省遂宁市遂宁高级实验学校2022-2023学年高一上学期期中数学试题
解题方法
4 . 已知函数
,
.
(1)若函数
在定义域上单调递减,求实数
的取值范围;
(2)若
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d668df21df1a32c726e9d75fa3dda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d668df21df1a32c726e9d75fa3dda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd85d4af7dfca7633dd9ca7993ec4d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a399a276e30510e557b42ee5db5510b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8d4ab24c1b8c51a1af4b995c720864.png)
您最近一年使用:0次
名校
5 . 若函数
在定义域内的某个区间I上是增函数,而
在区间I上是减函数,则称函数
在区间I上是“弱增函数”.
(1)判断
在区间
上是否是“弱增函数”(不必证明);
(2)若函数
(m,b是常数)在区间
上是“弱增函数”,求m、b应满足的条件;
(3)已知
(k是常数且
),若存在区间I使得
在区间I上是“弱增函数”,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e82cc461b9607e08a8b31597f6d26df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dccd78102e7372f800abeb4eb0e2f99a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ee26dcfebbd1a4f0c32d6eed44f5ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a29f7f6294171b824722185447384b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
名校
6 . 设函数
.
(1)证明:
在区间
上单调递增;
(2)若
,使得
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3fd09aa6bd2c73f713869a28e38e30.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403c480d5654ad603e4106831b52910d.png)
您最近一年使用:0次
2021-12-23更新
|
647次组卷
|
3卷引用:山西省运城市教育发展联盟2021-2022学年高二上学期12月月考数学试题
解题方法
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4961a3ad0f608709429e6d17b3a62f.png)
(1)证明函数
在区间
上是增函数;
(2)当
时,不等式
恒成立,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4961a3ad0f608709429e6d17b3a62f.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2c47b6e59f557b21dc90e9cf20b44a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fdf769d34983e69d8be4efd81914f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
.
(1)求函数
的解析式;
(2)若函数
,判断函数
在区间
上的单调性,并用定义证明;
(3)已知函数
在区间
上具有单调性,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f441e5ce6c2c9cacb445e190acf9db1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92acace17d43431c5d414cdc3b624fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92634a7daabf9bce925f0d7507ea7526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-10-04更新
|
1472次组卷
|
3卷引用:广东省东莞市东莞高级中学2020-2021学年高一上学期第一次月考数学试题
名校
9 . 若函数
在定义域内的某个区间
上是增函数,而
在区间
上是减函数,则称函数
在区间
上是“弱增函数”.
(1)分别判断
,
在区间
上是否是“弱增函数”(不必证明);
(2)若函数
(
、
是常数)在区间
上是“弱增函数”,求
、
应满足的条件;
(3)已知
(
是常数且
),若存在区间
使得
在区间
上是“弱增函数”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e82cc461b9607e08a8b31597f6d26df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
(1)分别判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09723a50d2bce12318e1b9b2c5c02621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dccd78102e7372f800abeb4eb0e2f99a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154186900500104502219afe07839158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445417d66161e8f8cbe9fb2166de74fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/659340c5560a41e799f1ee06aa58a01c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
.
(1)用定义证明
在区间
上是减函数;
(2)若不等式
对任意的
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5effb3053cf609f59178641cd48167.png)
(1)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55762dbc5015e3c5f7cfd894c6dea023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c22892cd526d878e3a022e4451f948c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-04-30更新
|
260次组卷
|
2卷引用:安徽省六安市第一中学2019-2020学年高一上学期第一次段考数学试题