1 . 已知两单位向量
的夹角为
,若实数
满足
,则
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111939547e581e8bf029a241b9e9cb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973d0a0db178233647d27fbb6547a62a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
您最近一年使用:0次
解题方法
2 . 设点
是线段
的中点,点
在直线
外,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7060db2a5c4d42f03b1addee9c95b1d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82a36a5fbbb3a1ceb589e329bd75f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72a0b58f2f3b85823faff5e244f8b9a.png)
A.12 | B.6 | C.3 | D.![]() |
您最近一年使用:0次
3 . 已知函数
(
)的最小正周期为
.
(1)求函数
在区间
上的最大值和最小值;
(2)已知
分别为锐角三角形
中角
的对边,且满足
,
,
,求
的面积.
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/6f27f89b065541ba83bc443e34c621b6.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/0ebc8e357fe842bea7f6405771f38e65.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/c2fd2759f9394edc95b4820577ff3830.png)
(1)求函数
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/20fee1f0bb3349f5a0d3de18fbcd25f1.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/c92a4a92fac3409eb6a5b37022dfe0f8.png)
(2)已知
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/9d5cdbd1e16d4616a7517541569be38b.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/ff5c0561b9144a8bbe3753d1c6ab01d1.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/614ff0fe45b347be8802f932b1d89364.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/6f15ef0316f54647b8247c0efcccccd9.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/52a11bf4e6034464b6eed598fde515c8.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/1b29e709311e4ecba081a7728e65d00f.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093739069440/STEM/36cfe353a2ea42849461e7fcafe32dd5.png)
您最近一年使用:0次
4 . 已知
是平面上的三个点,直线
上有一点
,满足
,则
等于
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093738602496/STEM/169d40c55f964b7dbddeea42ac12cb50.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093738602496/STEM/4e4944a152a54d4ab8b86d1e9deb8a39.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093738602496/STEM/6e0f3871cfa2404e9fc02f3b64c038c8.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093738602496/STEM/ebf31eb3b34148e69ab69620047c8882.png)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573093733056512/1573093738602496/STEM/2a897eedf6494c98abb40fe00c0280f1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
5 .
.
(1)求函数
的单调递减区间;
(2)在
中,角
的对边分别为
,若
,
的面积为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9d3963d6d41cab4dd270e9e8f5562a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.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/a5bbed914637823afb851144278f4a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
6 . 已知
,
,且
与
夹角为
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73fe78b21b123144105a7b4ae8aea9bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3b05bff547dd89fdda9681fece3fda.png)
![](https://img.xkw.com/dksih/QBM/2016/10/24/1573093083774976/1573093089771520/STEM/7e245ac2ad914c2f9f678fa1e4b82d35.png)
![](https://img.xkw.com/dksih/QBM/2016/10/24/1573093083774976/1573093089771520/STEM/193b375e0da14400ad2a0643a88d6497.png)
![](https://img.xkw.com/dksih/QBM/2016/10/24/1573093083774976/1573093089771520/STEM/0492769779da4ab8bb1f0a0d068093c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e1b5bfcd4254ec74848038aff7f16.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 已知函数
,则要得到其导函数
的图象,只需将函数
的图象
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4364a5b283ed5b4a751e9da1634ebb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea45df26f43708537b7969d6be047af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
A.向右平移![]() |
B.向左平移![]() |
C.向右平移![]() |
D.左平移![]() |
您最近一年使用:0次
2016-12-04更新
|
278次组卷
|
2卷引用:2017届河南新乡一中高三9月月考数学(文)试卷
8 . 已知函数
的最大值为3,
的图象与
轴的交点坐标为
,其相邻两条对称轴间的距离为2,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d9c8205294a5147ef5ff359379d922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094cba781181aeb90752170e9ba6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396f08142de290ca84dd492422a14c6b.png)
A.2468 | B.3501 | C.4032 | D.5739 |
您最近一年使用:0次
2014·江苏南通·三模
名校
9 . 在
中,角
对应的三边长分别为
,若
,
.
(1)求
的值;
(2)求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2333da32638ec636fa1e69e750ca4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a950a1fe5daba1d1fdfa1b64fb809de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d260e9f3f0f9d2e082b8d3c42be221c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4077d59428b0b81ac207566cf2163faa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c36a1287b4547910d595a9532412946.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621feeac5c4a72017ee3f9b97ef14f2b.png)
您最近一年使用:0次
2016-12-04更新
|
602次组卷
|
7卷引用:2016-2017学年安徽六安一中高二文上国庆作业数学试卷
2016-2017学年安徽六安一中高二文上国庆作业数学试卷(已下线)2014届江苏省南通市高三年级第三次模拟考试理科数学试卷(已下线)2014届江苏省南通市高三年级第三次模拟考试文科数学试卷2014-2015学年江苏省扬中市第二高中高一下学期周练习数学试卷甘肃省兰州市第一中学2018-2019学年高二下学期期末数学(文)试题(已下线)2019年上海市华东师范大学第二附属中学高三模拟(三模)数学试题(已下线)2019年上海市华东师范大学第二附属中学高三模拟数学试题
名校
10 . 在
中,
分别是角
的对边,且关于
的不等式
解集为
.
(1)求角
的大小;
(2)若
,设
,
的周长为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1300cfc70572e2a252de8bd9402aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d3af553a481761f30765a59ffdf7d3.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5406658ef654e36d7a8a76f12c8817fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c5382d25c3d7252cab2234149edaed.png)
您最近一年使用:0次
2016-12-04更新
|
499次组卷
|
2卷引用:2015-2016学年四川成都石室中学高一下期中数学试卷