名校
1 . 已知函数
,
.
(1)求证:
为R上的偶函数;
(2)若函数
在R上只有一个零点,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4b13834f3ca8e3ec9e20bd6c02bd35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964a86e1c993a63710fd1c329e2dd37c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-01-20更新
|
557次组卷
|
2卷引用:江苏省常州市教育学会2021-2022学年高一上学期学业水平监测数学试题
解题方法
2 . 设函数
.
(1)若
有两个不同的零点,求实数a的取值范围;
(2)若函数
有两个极值点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec5ff0c9bc8a51a7dd6b08b5e28c354.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b95494e86cf9749bb3bc2716618423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5977cee85986f40c03b152b71ebf178f.png)
您最近一年使用:0次
2022-03-24更新
|
1603次组卷
|
2卷引用:山东省济南市2022届高三模拟考试数学试题(3月)
名校
3 . 已知函数
,
,
.
(1)当
时,求证:
对于任意正实数x恒成立.
(2)若函数
在
上有且仅有两个极值点,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910456c072ab6206d23db23a11e16ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924d2ecf64512ecb0caf75807a62f506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf3ae959b7e0b6794475de103d43661.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
您最近一年使用:0次
2022-05-13更新
|
644次组卷
|
4卷引用:河南省多校联盟2022届高考终极押题(B卷)数学(文)试题
河南省多校联盟2022届高考终极押题(B卷)数学(文)试题(已下线)期末押题预测卷02(考试范围:选修二+选修三)-2021-2022学年高二数学下学期期末必考题型归纳及过关测试(人教A版2019)贵州省贵阳市第六中学2022届高三一模数学(文)试题贵州省贵阳市第六中学2022届高三一模数学(理)试题
4 . 定义在
上的函数
满足:对于任意实数x,y都有
恒成立,且当
时,
.
(1)判定函数
的单调性,并加以证明;
(2)设
,若函数
有三个零点,从小到大分别为a,b,c,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf20a3e9d3e9f83d8a0f1be4f3486be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
(1)判定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd928db507ecbedbf68d4ab045d156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e19b141dd8271d838cc537d065ead7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26450adf635f84fd5c401b96e1b6c55e.png)
您最近一年使用:0次
名校
5 . 已知函数
,函数
,设
.
(1)求证:
是函数f(x)的一个周期;
(2)当k=0时,求F(x)在区间
上的最大值;
(3)若函数F(x)在区间
内恰好有奇数个零点,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07699d9a8a6a1770b7ae08897abac853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4a029e4c4f50133090661fbcf09654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(2)当k=0时,求F(x)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e491151109a22b53131ba3203da29837.png)
(3)若函数F(x)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
您最近一年使用:0次
2021-09-04更新
|
612次组卷
|
5卷引用:上海市西南位育中学2020-2021学年高一下学期期中数学试题
解题方法
6 . 已知函数
在
上单调递减.
(1)求实数
的取值范围;
(2)当实数
取最大值时,方程
恰有二解,求实数
的取值范围;
(3)若
,求证:
.(注:
为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b8744c94d54246ce023e8a88b998c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d303edb2b74f0152e9da9e0b77a1ca37.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f826c4322fdbf0838670d917f7735e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f86f9b0f357d6166ebc79012bf88706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55278cd8cbc74b25a26141e20fe78e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9003a22f3bfbdc2dba7869c0f7d54c8c.png)
您最近一年使用:0次
7 . 已知函数
.
(1)判断
的奇偶性;
(2)判断
在
上的单调性,并用定义证明;
(3)若关于x的方程
在R上有四个不同的根,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff898a7280da14e0b1e71506749f583.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
(3)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dcfac6bd56db4c39177544ca66a8724.png)
您最近一年使用:0次
2022-02-04更新
|
328次组卷
|
4卷引用:安徽省巢湖市2021-2022学年高一上学期期末数学试题
名校
8 . 设
(
为实常数),
与
的图像关于原点对称.
(1)若函数
为奇函数,求
值;
(2)当
,若关于x的方程
有两个不等实根,求
的范围;
(3)当
,求方程
的实数根的个数,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6722cc1dd056370f301ce8a7d1553aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cea6b602e846f19cbdc0da09459a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38af85a827d1e77e368dc76e2a2b02d.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152e3782f914ada5c7cb890ccbd7600f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40ea860ab3b7ac6b12c623679276ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55c9f1a79c0594ee6ade90d9718aeaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
您最近一年使用:0次
2022-01-22更新
|
282次组卷
|
2卷引用:四川省遂宁市2021-2022学年高一上学期期末数学试题
名校
解题方法
9 . 已知函数
(
).
(1)若
在
上的最大值为
,求a的值;
(2)证明:函数
有且只有一个零点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5254ef61084dd03014c41ed39fbbe171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec85f29c0860b57a8f0cf8098c13a97e.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/630bb5680cbde5316f719dac7dd94b17.png)
您最近一年使用:0次
2022-01-17更新
|
876次组卷
|
3卷引用:湖南省长沙市雅礼中学2021-2022学年高一上学期期末数学试题
10 . 已知函数
(
).
(1)当
时,证明:
;
(2)若
有且仅有两个零点
,
,求实数
的取值范围,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322c441a30306a1016d75577d1626f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1c7eb356ec74b5e456c16e10b510ca.png)
您最近一年使用:0次