名校
1 . 已知函数
.
Ⅰ
设
,
,证明:
;
Ⅱ
当
时,函数
有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b00e359fdf8e317bd6cbdc406e85abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fb13c82ef51865e2b602f1e46851df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1352d70b13ae8a9420d93d305009a798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caadc258f6226ee800bde726a2bcfb5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aba6b840b3747ca29bdeb4ffd96d826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-03-13更新
|
907次组卷
|
4卷引用:【全国百强校】四川省成都外国语学校2018-2019学年高一下学期3月月考数学试题
名校
2 . 已知函数
(
为实常数且
).
(Ⅰ)当
时;
①设
,判断函数
的奇偶性,并说明理由;
②求证:函数
在
上是增函数;
(Ⅱ)设集合
,若
,求
的取值范围(用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99fcef3856a1d67acab12b85b5a4093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da67075d5f20954afe0232112e159ac9.png)
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd88b374924344fb157a15c2d36edad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
②求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9006ed5e53e4637fbacec7832dfe2146.png)
(Ⅱ)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d56bb1ee8639cb81434e10cb3c9a0cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4815b1d16a7ae485ff0bba0b397e893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
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2018-11-01更新
|
845次组卷
|
4卷引用:【全国百强校】江西省新余市第四中学2018-2019学年高一10月月考数学试题
【全国百强校】江西省新余市第四中学2018-2019学年高一10月月考数学试题浙江省2016年4月普通高中学业水平考试数学试题浙江省金华市第一中学2021-2022学年高一上学期期中数学试题(已下线)专练29 期中综合检测AB卷-2021-2022学年高一数学上册同步课后专练(人版A版2019必修第一册)
3 . 对于集合
,
,
,
.集合
中的元素个数记为
.规定:若集合
满足
,则称集合
具有性质
.
(I)已知集合
,
,写出
,
的值;
(II)已知集合
,
为等比数列,
,且公比为
,证明:
具有性质
;
(III)已知
均有性质
,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a98a3d1f11a31e9ab1a3dde94c2d58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fa6de6704a7eae1be8382bd77a9c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41665dac89fc1e0e60a0aa25bc76c5e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f218b2acb3b60a6fab35b3a6c7da28aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4978089eb165d2241a35275396794d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85bf0b9981913df5204e98aed6da97dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(I)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043f3f5b5238b377373c4ab58be2fec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995fd0d9a6f591c8daff9e1cf5a21657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dd02a2390fd78a359972a52b6834e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7266cce1ea0848712891db02ed18c45e.png)
(II)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a98a3d1f11a31e9ab1a3dde94c2d58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(III)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c0e5a91adcedbb06079ac61fc82e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e46f31e6dd0ef18885c3756005b371.png)
您最近一年使用:0次
2019-05-29更新
|
786次组卷
|
2卷引用:2019年北京市顺义区牛栏山第一中学高三9月月考数学试题
名校
4 . 已知f(x)=log4(4x+1)+kx是偶函数.
(1)求k的值;
(2)判断函数y=f(x)-
x在R上的单调性,并加以证明;
(3)设g(x)=log4(a•2x-
a),若函数f(x)与g(x)的图象有且仅有一个交点,求实数a的取值范围.
(1)求k的值;
(2)判断函数y=f(x)-
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
(3)设g(x)=log4(a•2x-
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb0b6452a3d526d760136e5c8936ba8f.png)
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2019-01-12更新
|
737次组卷
|
2卷引用:2020届天津市南开中学高三第一学期数学统练八试题
名校
5 . 已知函数
.
(1)讨论
的单调性;
(2)若
,证明:对任意的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f70281e331d6a47664b8ddce32a325.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb3185b11e4a9de8cdd36e1002ea79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1e3597d006053c85f41d74fff3fa6d.png)
您最近一年使用:0次
2019-04-22更新
|
1447次组卷
|
5卷引用:山西大学附属中学2018-2019学年高二5月模块诊断数学(理)试题
名校
6 . 已知函数
在
上是减函数,在
上是增函数
若函数
,利用上述性质,
Ⅰ
当
时,求
的单调递增区间
只需判定单调区间,不需要证明
;
Ⅱ
设
在区间
上最大值为
,求
的解析式;
Ⅲ
若方程
恰有四解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18426cffd99829508032275c2e033810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fef9380b394a4bd829c83a5a5b4c859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d45793b96fcc2aa90c8555b1c5157af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d894b35f3636c16c3455e809a867d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5036e26e77152eb05955d2aceca93950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c7a1c25073f5b206135366a1fedc98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dffc1e1569287ae3a29dcad8ce1401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4845ea2f5b15977cf713a1794b596589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b982ddacd48538d93a6e6ebb10395d.png)
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2019-02-07更新
|
279次组卷
|
4卷引用:江苏省南通市海安高级中学2018-2019学年高一下学期6月月考数学试题
名校
7 . 已知函数f(x)=ln x+
(a>0).
(1)若函数f(x)有零点,求实数a的取值范围;
(2)证明:当a≥
,b>1时,f(ln b)>
.
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030694281396224/2033138328281088/STEM/bc839824c6cd4094951bde3a57da424d.png?resizew=8)
(1)若函数f(x)有零点,求实数a的取值范围;
(2)证明:当a≥
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030694281396224/2033138328281088/STEM/3193c344866644588336add6fa7cb84d.png?resizew=8)
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030694281396224/2033138328281088/STEM/4b1f4f46bf4e469fa5e17e4dbc317cf0.png?resizew=8)
您最近一年使用:0次
2018-09-15更新
|
323次组卷
|
10卷引用:2017届河南省豫南九校(中原名校)高三下学期质量考评八数学(理)试卷
2017届河南省豫南九校(中原名校)高三下学期质量考评八数学(理)试卷2017届广东省广州市高三3月综合测试(一)数学文试卷2017届广东省广州市高三3月综合测试(一)数学理试卷四川省成都市9校2017届高三第四次联合模拟理科数学试题江西省宜春昌黎实验学校2018届高三第二次段考数学(理科)试题(已下线)2019高考备考一轮复习精品资料 【理】专题十五 导数的综合应用 押题专练【校级联考】广东省佛山一中、珠海一中、金山中学2018-2019学年高二下学期期中考试数学(理)试题2020届广东省佛山市第一中学高三上学期期中数学(文)试题(已下线)广东省广州市2017届高三下学期第一次模拟考试数学(理)试题四川省成都市双流中学2021-2022学年高三上学期9月月考数学理科试题
名校
8 . 已知奇函数
对任意
,总有
,且当
时,
,
.
(1)求证:
是
上的减函数;
(2)求
在
上的最大值和最小值;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a47914f8d35a705d60d6bfb99ea044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da314c06ddf6cb60feaecb52ca9fadd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9c89d2cd1fb46b1e71ad10227c098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a1b1fdcdde97a8c9e9339b2f33c5d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379c3205210ab0cc815620e0da65ddb3.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/519729c91b87550ebf2a3fa109b8d365.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab05e80adf5f44fcafce33521ac256da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
9 . 定义在
上的函数
对任意
,
都有
(
为常数).
(1)判断
为何值时,
为奇函数,并证明;
(2)在(1)的条件下,设集合
,
,且
,求实数
的取值范围;
(3)设
,
是
上的增函数,且
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/accf52fa9eff265eb12506c1f92acd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在(1)的条件下,设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995bc2f5321c0716820fc714d62ad88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495a1904c1348c3fc4aade7de80ea33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02f266bd253738e315e84231235f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ce4145edffae286050b6819260aaf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7128887c58fcf8b231753754a96caf4.png)
您最近一年使用:0次
2018-07-30更新
|
296次组卷
|
4卷引用:【全国百强校】山东省潍坊市第一中学2017届高三10月份月考数学试题
名校
10 . 记函数
的定义域为D. 如果存在实数
、
使得
对任意满
足
且
的x恒成立,则称
为
函数.
(1)设函数
,试判断
是否为
函数,并说明理由;
(2)设函数
,其中常数
,证明:
是
函数;
(3)若
是定义在
上的
函数,且函数
的图象关于直线
(m为常数)对称,试判断
是否为周期函数?并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](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/c8d8d7f3bab030b7301b1f8ffde25235.png)
足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d73ff48d69b4a7d1fb3a19f1cdfb1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b14436281d0445ba9a5321cbb34d3ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4370226c16822cf9bbc390444c581bf.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79f4673f430b3e9940b768323871cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4370226c16822cf9bbc390444c581bf.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cba018ab7f525ca0e1d21179d7e0a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4370226c16822cf9bbc390444c581bf.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4370226c16822cf9bbc390444c581bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
您最近一年使用:0次
2018-04-12更新
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744次组卷
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2卷引用:上海市杨浦区2018届高三下学期质量调研(二模)数学试题