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
名校
2 . 已知
是斜三角形,内角
所对的边的长分别为
.已知
.
(I)求角
;
(II)若
=
,且
求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edd51c782333e04862704165622ad68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbf5887ebf0a2fb425dc594bb983585.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573177637593088/1573177643655168/STEM/b6c58aa8b3e146afa83f8643cfed3404.png)
(I)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce0249a3ff99c083fa4421877549db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92217ba1661fa14b9503e0ac2ec105b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
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2016-12-05更新
|
780次组卷
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10卷引用:2016届江西省上高二中高三第七次月考文科数学试卷
2016届江西省上高二中高三第七次月考文科数学试卷2016届山西省太原市高三下第三次模拟文科数学试卷辽宁省沈阳市东北育才学校2015-2016学年高三上学期第一次模考数学试题(文科)2016届辽宁省抚顺市一中高三10月月考文科数学试卷2015-2016学年广东省普宁一中高二下第一次月考文科数学试卷2016-2017学年辽宁庄河高中高二10月考文数试卷2016-2017学年辽宁庄河高中高二10月考理数试卷2020届甘肃省河西五市部分普通高中高三第一次联合考试数学文科试卷广西北流市实验中学2019-2020学年高一下学期期中考试数学试题甘肃省武威市民勤县第一中学2022-2023学年高二上学期开学考试数学试题
解题方法
3 . 已知集合
,则集合B不可能是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b43c3fdfb10412af2382a9308a0449.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 在
中,
,
,
是边
上一点.
![](https://img.xkw.com/dksih/QBM/2016/11/15/1573147881881600/1573147887845376/STEM/b64fcc1d7fdc42b291f1f9562d8e7ac2.png?resizew=282)
(1)求
的面积的最大值;
(2)若
,
的面积为2,
为锐角,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c7f0d0987ee427b7efbbf889b9bf16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62eccb33ea66c03222468628f74d8c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2016/11/15/1573147881881600/1573147887845376/STEM/b64fcc1d7fdc42b291f1f9562d8e7ac2.png?resizew=282)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
5 . 在
中,
的对边分别是
,
,且
.
(1)求证:
为等腰三角形;
(2)若
的面积为
,且
,求
边上的中线长.
![](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/89e98ef935fb49140d21e92bd18a43a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f090bf715903c758524fe791f479f2ba.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e609d7f5a3b904e30f43fbbc26033d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee75d1b742854ac7dd04caf3b6f91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
解题方法
6 . 如图,
为平面四边形
的四个内角.
;
(2)若
,
,
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65c20ae60d180a2e3a8ba1b3441701f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7b43b781ba5be772b2bf4d302c0a4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f094001e6d2bc08c99192e0d3a39c9.png)
您最近一年使用:0次
2016-12-04更新
|
1095次组卷
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5卷引用:2017届江西南昌市新课标高三一轮复习训练五数学试卷
2017届江西南昌市新课标高三一轮复习训练五数学试卷福建省2017年数学基地校高三毕业班总复习 三角函数 形成性测试卷(理科,A卷)(已下线)第10讲 拓展五:四边形问题 (讲)-2023年高考数学一轮复习讲练测(新教材新高考)江苏省常州市田家炳高级中学2023届高三一模热身练习数学试题(已下线)专题20 三角函数及解三角形解答题(理科)-2
解题方法
7 . 在
中,内角
,
,
的对边分别是
,
,
,且
.
(1)求
;
(2)设
,
,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/fc41c63a6da07b62717cd10028585a22.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3570e05dacebb240a0814b2bccbc701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1928a5cf0d84ddfe836279cbffc6f4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
您最近一年使用:0次
名校
8 . △
的三个内角为
,
,
,若
,则
的最大值为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/229420e92c769ce0a0fc98067e365aff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bf53df3d647b711cb5131b9da43c1.png)
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2016-12-04更新
|
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5卷引用:2017届江西南昌市新课标高三一轮复习训练五数学试卷
解题方法
9 . 在
中,角
、
、
所对边的长为
、
、
,设
为
边上的高,且
,则
的最大值是( )
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5228da61bed106b28849ef91a2ec116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437ec1fd503db368949231bfebca88f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
10 .
的内角
的对边分别是
,已知
.
(1)求角
;
(2)若
的周长为
,求
的面积
.
![](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/3b04cc04edbebee9ba3e29066d7c5739.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e82c940a8dc6a5f84b12e9d8434c209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8364e0de3c661873fe72fb9d5c073e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2016-12-04更新
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3卷引用:2017届江西九江地区高三七校联考数学(文)试卷