名校
解题方法
1 . 已知
中,角
、
、
所对的边分别为
、
、
,若
的面积为
,
,则
的值为( )
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa41cbe71d9db8f2f95c44b9207a8b32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-10-19更新
|
451次组卷
|
2卷引用:河南省实验中学2021-2022学年高二上学期期中考试数学(理)试题
名校
解题方法
2 . 在
中,设
、
、
所对的边分别为
、
、
,已知
,且三角形外接圆半径为
.
(1)求
的大小;
(2)若
的面积为
,求
的值;
(3)设
的外接圆圆心为
,且满足
,求
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/b190db100ca1b5449315ff0c85ffea37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6209806f3aa028c3fd93eaa08b5a106f.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f4f229d569258e702174007b2db643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-09-08更新
|
381次组卷
|
6卷引用:河南省豫北名校2021-2022学年高一年级4月期中考试数学试题
名校
3 . 某机械零件是圆心角为
的扇形,其样品采用手工制作.如图,首先从一长
,宽
的矩形铁块
上截下一块四边形铁块
;然后再打磨掉阴影部分,得到半径为
的扇形
,
与
所在的圆相切,设
,阴影部分面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/d48d00a7-b7c0-4fe4-a0dc-4f9dfe8c209c.png?resizew=263)
(1)求函数
的解析式,并写出定义域;
(2)当
为何值时,
有最小值?并求出该最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe9f7abf7bcf4e1aa2579cd191d7761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb26c5cdef6f16f4b39cd091041b439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff51b44d66fcfb1bd003f859e63352ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cb3ef44dfe965d2ec4f7bdea91aad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb26c5cdef6f16f4b39cd091041b439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed01d1ff5a7f21a68fb3a1e5c7f393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc84f84f1f653347313342a7fc3c232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ecfda698212594a342565257dc5508.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/d48d00a7-b7c0-4fe4-a0dc-4f9dfe8c209c.png?resizew=263)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305db12b9fa2096a99a3e16c6b4592ce.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2021-07-10更新
|
176次组卷
|
2卷引用:河南省商开大联考2020-2021学年高一下学期期中考试数学试题
4 . 已知函数
.
(1)化简函数
的解析式;
(2)设函数
,求函数
的单调增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d466c553a8a81b0daf2e742295d8eb.png)
(1)化简函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f5505da3428d4045434dfa373959a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
名校
5 . 设向量
,
,
,函数
,将函数
的图象向左平移
个单位长度后得到函数
的图象,已知
的最小正周期为
.
(1)求
取得最大值时,
的取值集合;
(2)令函数
,对任意实数
,恒有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85b0ddb14bb468fbfeabeb6044acb24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8ef6fa8c5eb7c3d2e7bd1d18b0c95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ddbb5cfaedab59c97125105c3fe590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c57ad760ebf4e8c011c723dd2da6d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdaf49f9611922348aa2784465da614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bf3563ffdd7438769701af3f6598a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f76d5b4b2975a3c980d580f40dc84da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7efeb56b59b41e0d812cbef18d41cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-07-10更新
|
261次组卷
|
6卷引用:河南省商开大联考2020-2021学年高一下学期期中考试数学试题
6 . 已知函数
,其中
,
,
,
,其部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/dec80e6d-01cd-49ad-8d31-e67ba86aa7fb.png?resizew=168)
(1)求函数
的解析式;
(2)已知函数
,求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c923c64d63d2a195e1982f616c23544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/dec80e6d-01cd-49ad-8d31-e67ba86aa7fb.png?resizew=168)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a49eae9655597f128c85313dbc1ca27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2020-11-15更新
|
528次组卷
|
7卷引用:河南省焦作市县级重点中学2021-2022学年高三上学期期中考试文科数学试题
名校
7 . 已知
,
,
,将曲线
的图象向右平移
得到函数
的图象.
(1)若
,
,求
的值;
(2)若不等式
对任意
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96771cc77c134a024a98a9822a72179e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485e5792038778d8c14701367d071927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c829bd0c10b8e435bf62f2d16128e519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735a8486ea59abb08a19a64484ff001b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8af5297c9949914aceb44d6b1df814c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/511366b3d52171408900f2f77bfeb372.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd40dcaf2f7349e0f728343a8a08302b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
您最近一年使用:0次
2020-07-31更新
|
949次组卷
|
9卷引用:河南省濮阳市华龙区第一高级中学2022-2023学年高一下学期期中数学试题
名校
解题方法
8 . 已知
,
,
分别是
的角
,
,
所对的边,且
,
.
(1)若
的面积等于
,求
,
;
(2)若
,求
的值.
![](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/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/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38f550e95b2950f91e8ec1798b94109.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257b4a4ca5231ff3a317a519dc3c628b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2021-11-23更新
|
392次组卷
|
8卷引用:河南省郑州市2021-2022学年高二上学期期中数学(理)试题
9 . 已知
.
(1)试用五点作图法画出函数
在
上的简图;
(2)定义在
上的减函数
,若
对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c342275d97680f3650556645683e0ed.png)
(1)试用五点作图法画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b604c6522119e77c1cb16b91532a2c1.png)
(2)定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6223fc449b837ce40aed0f86fad7f1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed32cb9c217533abe855b0c9144cbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.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
10 . (1)化简求值:
;
(2)已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddf31383a0e96641232fd75ae144b82.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60766b0c3705ffe3e62fe42931022617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8513ff2a7ecf0ca7b5848528be217e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fc611dd495a459c93f925afbd2bf9d.png)
您最近一年使用:0次