名校
1 .
ABC的内角A,B,C的对边分别为a,b,c,
,
,则
ABC周长的最大值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1dd07c0571772e96d318f974724810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6129fbf40a950fc8c516f0abaab21957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.png)
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2019-05-05更新
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985次组卷
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4卷引用:【区级联考】天津市部分区2019届高三质量调查试题(二)数学(理)试题
【区级联考】天津市部分区2019届高三质量调查试题(二)数学(理)试题陕西省延安市吴起县2019-2020学年高二上学期期中数学(理)试题(已下线)第27练 基本不等式及其应用-2021年高考数学(理)一轮复习小题必刷江苏省连云港高级中学2021-2022学年高一下学期期中数学试题
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2 . 在
中,角
、
、
所对的边分别为
、
、
,且
.
(Ⅰ)求角
的值;
(Ⅱ)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/9a1e889d51d14054ef6eed12c38cbebc.png)
(Ⅰ)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8607bde1fa6cde631a46e921d959a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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2019-05-03更新
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939次组卷
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4卷引用:【校级联考】天津市十二重点中学2019届高三下学期毕业班联考(二)数学(理)试题
3 . 在
中,角
所对的边分别为
, 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19413584b1428550d9f4c1f318d56a64.png)
(Ⅰ)求
的值;
(Ⅱ)若
,求
的值.
![](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/19413584b1428550d9f4c1f318d56a64.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ccff4151ac59fc4be76a1b705cd8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b98693c55ad0081360105e6741bc28.png)
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4 . 已知三角形
中,角
的对边分别是
,且
=
.
(Ⅰ)求角
的大小及
的值;
(Ⅱ)若
的面积为
,求
的最小值.
![](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/70a39cd618cfeca38655f0c3d72bfce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6e9923d0ac87e5293bb04b488d7f9f.png)
(Ⅰ)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78183de7b22522f79d05ba936ecf3d3.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
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2019-04-29更新
|
1367次组卷
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2卷引用:【区级联考】天津市和平区2018-2019学年度第二学期高三年级第二次质量调查数学(文)学科试卷
名校
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28179c54c63dc18bd211a74e7ad795d.png)
(Ⅰ)求
在
上的单调递增区间;
(Ⅱ)在
中,
分别是角
的对边,
为锐角,若
, 且
的面积为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28179c54c63dc18bd211a74e7ad795d.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
(Ⅱ)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2b1c01b4527d0617dc2c77c689a22d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
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2019-04-29更新
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3卷引用:【区级联考】天津市和平区2019届高三第二学期第二次质量调查数学(理)试题
名校
6 . 如图,已知
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed3f2283e91d86b52630df3250db131.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8d3b5678eafb873b5f3bdb2717b9d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fa3aea72ccc36948a4a90f7368f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5123c255adb57e695628347220ed7f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4986c790e9259861ba4e937ed081db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed3f2283e91d86b52630df3250db131.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/f41ae050-2577-4f8f-aeda-6d030a65e486.png?resizew=140)
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2019-04-26更新
|
1222次组卷
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3卷引用:【区级联考】天津市河东区2019届高三二模数学(理)试题
7 . 在
中,
分别是角
的对边,若
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adf5824ef0f3eecee36a80b5993f448.png)
(1)求
的值;
(2)求
的值;
(3)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/b05d3b8f5c9df891ef6fbcaf12f43207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adf5824ef0f3eecee36a80b5993f448.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8008e8d0c9ce94736f01f6af927c2f1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2019-04-24更新
|
799次组卷
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3卷引用:【市级联考】天津九校联考2019年高三文科数学试题
8 . 已知
的内角
的对边分别为
若
,
,且
.
(I)求
的值;
(II)若
,求
的值.
![](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/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cdf6426f0eaa95c31648895d35fe165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11f594b16174b616c42abd2f78a2787.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69225cfdfbc0a9a1ccfdd15c46353b8f.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d70009d48ea5ed5e20cc5eff3d557e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c2dbf9f00ba360a31ca4cf66ce5e6c.png)
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2019-04-22更新
|
819次组卷
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3卷引用:【校级联考】天津市九校联考2019届高三数学(理)学科试题
9 . 在
中,
,
,
分别为角
的对边,
,
.
(I)求
的值
(II)设
,求边长
的长.
![](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/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f44c181a2f6ae22d5d52b374768dc57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea25f36ed6250992455bdb773017ecca.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(II)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513587870824ff87b56f0ed927297869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 在△ABC中,a,b,c分别为角A,B,C的对边,B=2C,sinC= ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d02ae074c7c2f7dfde8058dfa55ab.png)
Ⅰ.求cosA的值;
Ⅱ.设bc=24,求边a的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d02ae074c7c2f7dfde8058dfa55ab.png)
Ⅰ.求cosA的值;
Ⅱ.设bc=24,求边a的长.
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2019-04-09更新
|
915次组卷
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2卷引用:【区级联考】天津市南开区2019届高三下学期模拟考试数学(理)试题