名校
1 . 已知函数
若对于任意实数x,
与
的值至少有一个为正数,则实数m的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c367ec5473510ea146c7e1543fe21ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bd3d4555a07a93664b8e8a1df194a1.png)
您最近一年使用:0次
2017-12-05更新
|
820次组卷
|
2卷引用:广东省实验中学2017-2018学年高一上学期期中考试数学试题
名校
2 . 已知函数
.
(1)求
的值域;
(2)设函数
,
,若对于任意
, 总存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f18587bc71e4ad32e8ba3859bca200.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7531590982f6aed8cb37c2474e46a66e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75bde2e500fd5386e355db9040a1946d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b22239241a16d7e9a52d3a437f4c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7eb89a1fc2c62caf8f073b519b743f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982f44059061490f50329f7e71aa0dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-12-05更新
|
1681次组卷
|
3卷引用:广东省实验中学2017-2018学年高一上学期期中考试数学试题
名校
解题方法
3 . 已知
是定义在
上的奇函数,当
时,
,函数
,如果对于任意
,存在
,使得
,则实数
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb7883ea87e6275472dbe14ee62357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e47d77aa8a3cff15aaa7e1e893c761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e27998c66a7be5c812033b7e883b8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b1647deca74be1346f76ac07382917b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204e6006eacca1a448fe6991f3c121f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2618ce4371cad6e470a3942f98b1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-11-01更新
|
1192次组卷
|
2卷引用:广东省广州市南沙区第一中学2017-2018学年高一上学期期中考试数学试题
4 . 已知函数
.
(1)用定义证明
是偶函数;
(2)用定义证明
在
上是减函数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1439c562a1331c7245f7ad4c70e0b6b3.png)
(1)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c0c037867665979b6dc75fb995f9ec.png)
您最近一年使用:0次
2017-10-18更新
|
627次组卷
|
2卷引用:广东省高州市大井中学2017-2018学年高一上学期9月月考数学试题
名校
解题方法
5 . 如图,在
中,
、
分别是
、
的中点,若
(
,
),且点
落在四边形
内(含边界),则
的取值范围是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/82f521a2-94b6-43f7-814b-0894a628f554.png?resizew=183)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800eca4e8d1c3f4792a1d3aba6f3b481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d093706141016f4e2fde905738cd481e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54dad48527a47eab4a5916ab0421cc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53abbd672b82a02c4975f99fbbd2c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff3887457677acc0bbcda01c268ffd4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/82f521a2-94b6-43f7-814b-0894a628f554.png?resizew=183)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-09-07更新
|
3123次组卷
|
14卷引用:广东省广州市广东仲元中学2016-2017学年高一第二学期期末考试数学试题
广东省广州市广东仲元中学2016-2017学年高一第二学期期末考试数学试题河北省定州中学2017-2018学年高二上学期开学考试数学试题河北省定州中学2018届高三上学期毕业班第二次月考数学试题河北省定州中学2017-2018学年高一(承智班)下学期开学考试数学试题人教B版(2019) 必修第二册 逆袭之路 第六章 6.2 向量基本定理与向量的坐标 6.2.1 向量基本定理【全国百强校】湖南省长郡中学2018届高三下学期第一次模拟考试数学(理)试题陕西省黄陵中学2018届高三6月模拟考数学(理)试题(重点班)【市级联考】江西省萍乡市2019届高三第一学期期末考试数学文试题河南省南阳市2019-2020学年高三上学期期中数学(文)试题(已下线)第19练 平面向量的综合应用-2021年高考数学(文)一轮复习小题必刷(已下线)专题2.3 平面向量中范围、最值等综合问题-玩转压轴题,进军满分之2021高考数学选择题填空题(已下线)专题5 向量小题归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题5-2 向量线性运算及四心综合归类-1(已下线)专题4 向量综合归类(讲+练)-1
名校
6 . 在棱长为1 的正方体
中,以A为球心半径为
的球面与正方体表面的交线长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
您最近一年使用:0次
2017-09-06更新
|
1233次组卷
|
3卷引用:广东省深圳市宝安中学2016-2017学年高一下学期期中考试数学(理)试题
广东省深圳市宝安中学2016-2017学年高一下学期期中考试数学(理)试题(已下线)高一数学下学期期中精选50题(压轴版)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)江苏省无锡市天一中学2021届高三下学期二模考前热身模拟数学试题
名校
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95f260b9737f70f17646917183a40ad.png)
(1)求证:
;
(2)若对任意的
,使得
有解,求实数
的取值范围;
(3)若
时,函数
有四个不同零点,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95f260b9737f70f17646917183a40ad.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358c6f85f180e3c7c68176095df1c97f.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b63a87545fb8a1913ad16e376d42bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b9988f2ccf9dee758e40cf4f6145a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674a829d1fb95cb606d9a8b989ac35a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8535d29e8d468ab907ca4cb801fb65fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-08-21更新
|
1884次组卷
|
2卷引用:广东省韶关市2016-2017学年高一下学期期末考试数学试题
名校
解题方法
8 . 已知圆心在原点的圆被直线
截得的弦长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a87f43ddadbbdc177e1c35bc51a6e7.png)
(1)求圆的方程;
(2)设动直线
与圆
交于
两点,问在
轴正半轴上是否存在定点
,使得直线
与直线
关于
轴对称?若存在,请求出点
的坐标;若不存在,请说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a87f43ddadbbdc177e1c35bc51a6e7.png)
(1)求圆的方程;
(2)设动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0bc80d700368fb8abd76d8f1652a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2017-08-21更新
|
2442次组卷
|
4卷引用:广东省韶关市2016-2017学年高一下学期期末考试数学试题
解题方法
9 . 长为
的线段
的两个端点
和
分别在
轴和
轴上滑动.
(1)求线段
的中点的轨迹
的方程;
(2)当
时,曲线
与
轴交于
两点,点
在线段
上,过
作
轴的垂线交曲线
于不同的两点
,点
在线段
上,满足
与
的斜率之积为
,试求
与
的面积之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978a7a0baaa1a4e7cdac80a6a91a0ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40277f2c88dc0b716383fc785df8ab7c.png)
您最近一年使用:0次
名校
10 . 已知
,
,函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754b66664765d7777ec83e301227346d.png)
(1)若
,
,求
的值;
(2)若不等式
对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad39a5f2ab8d0a6725405e7e4a82c812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754b66664765d7777ec83e301227346d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01b6fb6a1c7a895df528382a5583444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fc871c64e0d00779a5f7ae8059937c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8aaf830ba8ed8a772923d908ee966e.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次