1 . 已知函数
(其中
为正实数)的图象关于直线
对称,且
,
且
恒成立,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc523612a1605a2ba0bb24aae644c619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d729d4e273ddcbb1a1b7ec3f152c2b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ba6d93a671ca21730facc7fbf052c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f38a60c94e04db92cebfe6c25a77c9.png)
A.![]() |
B.不等式![]() ![]() ![]() |
C.函数![]() ![]() |
D.函数![]() ![]() |
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2016-12-05更新
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541次组卷
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3卷引用:2017届江西金溪一中等校高三上期中联考文数试卷
2 . 若
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be393328d35bea5e0ef9fb676e01228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca038f1314e22fbdb24df7024c5c7d5c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-05更新
|
259次组卷
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2卷引用:2017届江西金溪一中等校高三上期中联考文数试卷
名校
3 . 在
中,
、
、
所对的边分别为
、
、
,已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d75c275ee8382e21606f032c72c3777.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/efd3476dc91ff0180fdab52dd0dc3a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c127a85a4653195b5a51ea9230ceb2c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d75c275ee8382e21606f032c72c3777.png)
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2016-12-05更新
|
429次组卷
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2卷引用:2017届江西金溪一中等校高三上期中联考文数试卷
4 . 在△
中,
为线段
上一点(不能与端点重合),
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706e774dfd32305229cf4e06b36eecc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba56b41fe702d9b6433e4d01e48d69a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
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5 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76399ed0296a8dd38b5dcec57170267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b217ef5e9f723ccc010d182b2abe1f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76399ed0296a8dd38b5dcec57170267.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 已知
是第二象限角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bfb7ecf17bdd90e1a632ebe4499f23.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca03f5ef20b70dddbb3766f9c3086e94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bfb7ecf17bdd90e1a632ebe4499f23.png)
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解题方法
7 . 将函数
的图象向左平移
个单位,得到函数
的图象,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68cf294952dfae06a1263c6cadc607bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b69099d2b74ffbb1f365e1468bd8fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f531c9fbf5b99fa85a2c9692ea1d791c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知向量
,函数
.
(1)求函数
的最小正周期及值域;
(2)已知
中,角
、
、
所对的边分别为
、
、
,若
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c03fceaa917bf69308ff8caa48024f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e1e5e9e05debfbc084860cdbae78ae.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.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/4db183e2963bb4234a68f8294263258f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
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9 . 在
中,内角
,
,
的对边分别是
,
,
,若
,
,则
等于( )
![](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/18af922d7bcd7a1bfbd89398d86eda5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2500d28e98b14ea3e6b6fec6c9af016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-05更新
|
1149次组卷
|
4卷引用:2017届江西师大附中高三10月月考数学(文)试卷
10 . 在
中,
分别是角
的对边,![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/9d2813c89fce450ba8b821db0137c3d7.png)
.
(1)若
且角
为锐角,求角
的大小;
(2)在(1)的条件下,若![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/fd7b40931f964084b1d83d445424913b.png)
,求
的值.
![](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/3edd51c782333e04862704165622ad68.png)
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/9d2813c89fce450ba8b821db0137c3d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8b1927a000c3528c421e8f9a33940b.png)
(1)若
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/2ca314d2c7354e4980b502363eacfaf1.png)
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/d4afc8020fca4b7c9fbb90b4159f89c8.png)
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/d4afc8020fca4b7c9fbb90b4159f89c8.png)
(2)在(1)的条件下,若
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/fd7b40931f964084b1d83d445424913b.png)
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/3411bd76744e42a29cfe99d20457bc30.png)
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559717888/STEM/c2865fb272a04676b85e37b80179f465.png)
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