1 .
的内角
所对边分别为
,若
,则角
的大小( )
![](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/3fa3a86ee540494605c03c9cd3aafa38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 在①
;②
;③设△ABC的面积为S,且
.这三个条件中任选一个,补充在下面的横线上.并加以解答.
在△ABC中,角A,B,C的对边分别为a,b,c,且 .
(1)求角B的大小;
(2)若
,
,且C为钝角,求△ABC的周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdd31043c300b09b096b518729cb7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c15da6be54e616da972b43e7fc55fc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be49a7cf070944ed151839a8c0983bec.png)
在△ABC中,角A,B,C的对边分别为a,b,c,且 .
(1)求角B的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6129fbf40a950fc8c516f0abaab21957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e124aadc347ad540de68f2c6d17afc4.png)
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2024-05-06更新
|
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2卷引用:河南省周口市太康县第一高级中学2023-2024学年高一下学期第三次(4月)月考数学试题
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3 . 已知角
的顶点是坐标原点,始边与x轴的正半轴重合,它的终边过点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e48ea72fd40ebc8004ff0dfd22ba6c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
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4 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffd1f6bd3686a07efa4086a02b96a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94a5224153ef7d15a6d9eb526cd84fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99769f02c84ce396c6eb8218f549daa.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知复数
的实部与虚部互为相反数,则
的取值不可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464d400a3cfcfd3e683b682348eba842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8卷引用:江苏省镇江中学2023-2024学年高一下学期期中检测数学试题
江苏省镇江中学2023-2024学年高一下学期期中检测数学试题(已下线)第5章:复数章末综合检测卷(新题型)-【帮课堂】(北师大版2019必修第二册)(已下线)专题04 复数的概念与运算-《期末真题分类汇编》(江苏专用)(已下线)专题04 复数-期末考点大串讲(苏教版(2019))(已下线)必考考点4 复数及其运算 专题讲解 (期末考试必考的10大核心考点)(已下线)专题06 复数常考题型归类-期末考点大串讲(人教B版2019必修第四册)宁夏回族自治区银川一中2024届高三第三次模拟考试理科数学试题宁夏回族自治区银川一中2024届高三第三次模拟考试文科数学试题
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6 . 如图,在平面直角坐标系xOy中,点
,点
在单位圆上,
(
).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/8/0a14a7c5-26e7-480e-9564-ccc8d03e6c5f.png?resizew=175)
(1)求
的值;
(2)若四边形OADB是平行四边形,求点D的坐标;
(3)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8950c7bc835103d52ceffab14b6b31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf66ddd7e0869ffdce7f9c45972d193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7e00f8bacce4d649b535449f04568c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0917d846965359153058d56498f076bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/8/0a14a7c5-26e7-480e-9564-ccc8d03e6c5f.png?resizew=175)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d1f5778af41bf197321d654a41597c.png)
(2)若四边形OADB是平行四边形,求点D的坐标;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbdf11b398a9190998780206d7e9512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a66e27ef92fcc51530e54533e23973.png)
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2024-05-04更新
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138次组卷
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2卷引用:北京市门头沟区大峪中学2023-2024学年高一下学期期中数学试卷
7 . 若
,使等式
成立的
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6d68581a66f9ffbf8c082206eb4458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65be1c77919b5b76d09b3c2c032fac05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知
,则点
所在象限为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138684aa4e76024a1e80178cd6997c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.第一象限 | B.第二象限 |
C.第三象限 | D.第四象限 |
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9 . 在
中,设
,
,
分别表示角
,
,
对边.设
边上的高为
,且
.
(1)把
表示为
(
,
)的形式,并判断
能否等于
?说明理由.
(2)已知
,
均不是直角,设
是
的重心,
,
,求
的值.
![](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/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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be0e767bb1b97d58ea8dfc86f03e229.png)
(1)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437ec1fd503db368949231bfebca88f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d12950de8ca9775816b9337ccf7863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f370a1d4dd341e5ab1774a66c66c1204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437ec1fd503db368949231bfebca88f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(2)已知
![](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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2372c8c6322f36a6444e6f3485c27f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b2139fd92090785e08fbdf814c41f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
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2024-05-04更新
|
678次组卷
|
2卷引用:浙江G5联盟2023-2024学年高一下学期期中联考数学试题
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10 . 已知函数
的部分图象如图,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b16a66740d7b104d01381235b5b7d8.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00299e2356c68a36c3a4dd50d90ced1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b16a66740d7b104d01381235b5b7d8.png)
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