名校
1 . 已知下列命题:
①命题:“
,
”的否定是:“
,
”;
②抛物线
的焦点坐标为
;
③已知
,则
是
的必要不充分条件;
④在
中,
是
的充要条件.
其中真命题的个数为( )个
①命题:“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1464ad5c912d05a44974bd1c50e2e19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8df0a803f27258017cbd0510b0ae0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5058f2641b369438a0347b7d72529f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b78fe304e1cf03b840a2262205574.png)
②抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc229bbefefbfe419495a49e115ae82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1156a8b29780810bd472f6d9e11b0e39.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5171ca9257790093a79366e8a5251e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb9bace43ea5e7cb4de694b1765e92b.png)
④在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
其中真命题的个数为( )个
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a66f9cdf8b319a1bad2884edbb8aaac.png)
(1)求
的单调递增区间;
(2)三角形
的三边a,b,c满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a66f9cdf8b319a1bad2884edbb8aaac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1275a53087eea8820ee57627707ace18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4b57c2a3297e19a86697999c090b34.png)
您最近一年使用:0次
2022-05-19更新
|
1385次组卷
|
8卷引用:天津市耀华中学2022届高三下学期二模数学试题
天津市耀华中学2022届高三下学期二模数学试题浙江省山水联盟2022届高三下学期5月联考数学试题宁夏回族自治区石嘴山市第三中学2024届高三第一次模拟考试数学(文)试题福建省漳州市第三中学2021-2022学年高二下学期期末考试数学试题(已下线)第05讲 正弦定理和余弦定理的应用 (高频考点—精讲)四川省宜宾市叙州区第二中学校2024届高三上学期期末数学(理)试题四川省宜宾市叙州区第二中学校2024届高三上学期期末数学(文)试题(已下线)专题11.3余弦定理、正弦定理的应用-重难点突破及混淆易错规避(苏教版2019必修第二册)
名校
解题方法
3 . 在
中,
,
,
.
(1)求AB的长;
(2)求
;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264381eddf150479287e20be0007ef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3578b63c5903089595bf324c809a997c.png)
(1)求AB的长;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc650d5d19b121734334cff3b81dd22.png)
您最近一年使用:0次
2022-05-18更新
|
1065次组卷
|
3卷引用:天津市和平区2022届高三下学期三模数学试题
名校
解题方法
4 . 在
中,角
所对的边分别为
.
(1)若
,求
的值;
(2)若
,求
的值;
(3)若
,且
,三角形的面积
,求边
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/76f0649064a085fb74c997fb507a9b6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49aa205105849b37f0ae4c097349df9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609c0a865c4d709134d26223fe65bba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2efb932d2cbd93981924abead9b1e6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4a570e7b3e4dfff30ef2ad943bf56f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a5f425bf13959b52460e37483d9250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398d3225adb988695b8d3afa49fb2db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2022-05-11更新
|
923次组卷
|
2卷引用:天津市和平区2022届高三下学期二模数学试题
名校
解题方法
5 . 如图.在平面四边形
中,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93f2f6b085411fe7a88ef32da748202.png)
___________ ;若点
为边
上的动点,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a1202c77d2160b30fbd768624429be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93f2f6b085411fe7a88ef32da748202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba6ca58387ddf451d9eab246fcb4a7c.png)
![](https://img.xkw.com/dksih/QBM/2022/5/9/2975744342573056/2977122535333888/STEM/8abc2bbf-445a-4b90-994d-73f7ebb4b66a.png?resizew=136)
您最近一年使用:0次
2022-05-11更新
|
1421次组卷
|
7卷引用:天津市和平区2022届高三下学期二模数学试题
天津市和平区2022届高三下学期二模数学试题(已下线)10.2 平面向量的数量积(精讲)(已下线)拓展一:平面向量的拓展应用 (精讲)(1)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)2023年天津高考数学真题变式题11-15天津市天津经济技术开发区第二中学2023届高三上学期期中数学试题天津外国语大学附属外国语学校2023届高三上学期10月月考数学试题天津市静海区北师大实验学校2023-2024学年高三上学期第一阶段评估数学试题
名校
解题方法
6 . 在
中,角
的对边分别为
,若
,且
的面积为
,
.
(1)求角
的大小及
;
(2)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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a193a8b55d53183990a7ea3d88d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/405bf49eac8e1e7cf70ea425448b4f21.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f3a180c35808d1fe14ae17876c4cc0.png)
您最近一年使用:0次
2022-05-08更新
|
1859次组卷
|
7卷引用:天津市第一中学2022届高三下学期统练6数学试题
名校
解题方法
7 . 在
中,
,
,
分别是角
,
,
所对的边,已知
,
,且
.
(1)求角
;
(2)求边
的大小;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.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/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/783d6adfa8fb1352679c5185258d842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6857dd9b43b9835fb822e9ee2bcfe6a6.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79d51b178f2efb9de6c19d8acadc09d.png)
您最近一年使用:0次
2022-05-03更新
|
2185次组卷
|
7卷引用:天津市耀华中学2022届高三下学期高考前冲刺(三)数学试题
名校
解题方法
8 . 在
中,角
,
,
所对边分别为
,
,
,且
,
,
.
(1)求边
及
的值;
(2)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/eb573197384b9410cb951a4d1e301b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534f33cc16d82470cbff68beffead264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6950900f2551c9b195f16d617275adfe.png)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7881f30b2d2473c9f3c27dacf056e20b.png)
您最近一年使用:0次
2022-04-23更新
|
1569次组卷
|
7卷引用:天津市耀华中学2022届高三下学期统练9数学试题
天津市耀华中学2022届高三下学期统练9数学试题天津市第二南开学校2021-2022学年高三上学期期中数学试题天津市滨海新区塘沽第一中学2022届高三下学期高考模拟数学试题天津市河东区2023届高三二模数学试题天津市滨海七校2020-2021学年高三上学期期末联考数学试题(已下线)专题15 第一篇 热点、难点突破《测试卷》 -2021年高考数学二轮复习讲练测(浙江专用)天津市宝坻区第一中学2020-2021学年高三上学期第三次月考数学试题
名校
解题方法
9 . 已知
的内角
的对边分别为
,满足
.
(1)求角
的大小;
(2)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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916235db336a0b58e85b4345ad8e5937.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985ef3a8e9068ada3abd2dad862e9465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde5b584acf252f9b77ef7d2e91807d1.png)
您最近一年使用:0次
2022-04-07更新
|
1583次组卷
|
7卷引用:天津市和平区2022届高三下学期一模数学试题
名校
解题方法
10 . 已知三角形
的内角
所对的边分别为
,
且C为钝角.
(1)求cosA;
(2)若
,
,求三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.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/9e672216ea27ba3a7ea84176cc8f3bb4.png)
(1)求cosA;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f11974b878b1c24185d84a3b978dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
您最近一年使用:0次
2022-03-30更新
|
716次组卷
|
5卷引用:天津市耀华中学2022届高三下学期高考前冲刺(一)数学试题