名校
1 . 已知定义域为
的函数
,若对任意的
、
,都有
,则称函数
为“定义域上的
函数”,给出以下五个函数:
①
,
;
②
,
;
③
,
;
④
,
;
⑤
,
,
其中是“定义域上的
函数”的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3830ea6ea58c99a0fc1adadccac0fab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7fd1c83a0073cabf7a35f1426dd30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dee50d54f9c52ad203f9c9a49f2d6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd29ec209a6f41cc8e120e21516f8e5.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5ab1f6923041b7f9a4e7bb641ead4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd29ec209a6f41cc8e120e21516f8e5.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2479aadd48e9cb40c924e8e7ad2303.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45afdf4d717bb03adac6b899c367acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008f095c461be6cfda663cc3cc50cbba.png)
其中是“定义域上的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-11-27更新
|
302次组卷
|
7卷引用:2016届江西省名校学术联盟高三第一次调研一理科数学试卷
2016届江西省名校学术联盟高三第一次调研一理科数学试卷江西省景德镇一中2020-2021学年高一上学期期中考试数学(2班)试题2017届安徽淮北十二中高三上月考二数学(文)试卷2018届高三数学训练题:阶段滚动检测试题(一) 湖南省长沙市宁乡一中2019-2020学年高一(拓展班)上学期11月月考数学试题(已下线)专题6 三角恒等变换-2021年高考冲刺之二轮专题精讲精析(已下线)单元提升卷03 函数
名校
解题方法
2 . 在锐角
中,
,
,
分别是内角
,
,
所对的边,若
,
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/071a7e733d466949ac935b4b8ee8d183.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
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2020-11-24更新
|
640次组卷
|
2卷引用:黑龙江省绥化市海伦市第一中学2020-2021学年高三上学期期中考试数学(文科)试题
2020·全国·模拟预测
名校
3 . 已知函数
.
(1)求函数
在
上的单调区间;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c4407ab4deec3f9b56fe440e89dee73.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217a7df60635c0e378fea8177861b1d5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9082ee8dab6c1e4e325c9db6b9f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88319a3a604ab4eb1787e3c8fe88d55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0257d559e386637518349ea4dcaf6a.png)
您最近一年使用:0次
2020-11-24更新
|
3496次组卷
|
5卷引用:2021届全国著名重点中学新高考冲刺数学试题(9)
4 . 将函数
的图象向左平移
个单位后得到函数
的图象,且当
时,关于
的方程
有三个不等实根,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae894df0ac546506338f4d9a21dcb8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2074d36c0c3cb54bf6190fe0f66e52dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6421b3c31118fd75ca7fb677224dd3ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fa4c174e0da6133b7e8a7e2c858e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-11-23更新
|
772次组卷
|
5卷引用:百师联盟2021届高三一轮复习联考(二)全国卷 数学(理)试题
名校
5 . 在
中,内角
的对边分别为
,它的外心在三角形内部(不包括边),同时满足
.
(1)求内角
;
(2)若边长
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c946c284305c7b95ae332a0815d55ec3.png)
(1)求内角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若边长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
名校
6 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa253745822d20eb007bae6c4f69d5d4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa253745822d20eb007bae6c4f69d5d4.png)
您最近一年使用:0次
2020-11-06更新
|
1516次组卷
|
6卷引用:2020年全国普通高等学校招生统一考试(江苏卷)模拟预测卷数学试题
7 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de8b4610323de7edcacbfadc2d81a35.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f26863ce495e232d9a7daa84ab0f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de8b4610323de7edcacbfadc2d81a35.png)
您最近一年使用:0次
10-11高三·江西·单元测试
真题
8 . 在
中,内角
、
、
所对的边分别为
、
、
,设
、
、
满足条件
和
,求角
和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.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/071a7e733d466949ac935b4b8ee8d183.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e376613966c52037e6a3f44f358843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fefc90cff26a3ab3a3199502ca21486e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
您最近一年使用:0次
2020-10-21更新
|
457次组卷
|
3卷引用:2011届江西省莲塘一中高三习题精编单元练习8数学文卷
名校
解题方法
9 . 在
中,内角
的对边分别为
,已知
,那么
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/003e0896efa62a65f1de7067b3502243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 设a=sin17°cos45°+cos17°sin45°,b=2cos213°-1,c=
,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
A.c<a<b | B.b<c<a | C.a<b<c | D.b<a<c |
您最近一年使用:0次
2020-10-17更新
|
324次组卷
|
3卷引用:江西省新余市2019-2020学年高一下学期期末考试数学(文科)试题