1 .
的两个实数根是
和
,则不等式
的解集为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b800b7d6a688abf8a3018c133cec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb56d9418f1a3cb2baa6b0c862010ad.png)
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2 . 已知
中,若
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8acedf16401b385db717479d228698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb1606f91a55ec822fa19b28c441b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-08-12更新
|
218次组卷
|
10卷引用:辽宁抚顺十中2019-2020学年高一下学期新教材线上检测数学试题
辽宁抚顺十中2019-2020学年高一下学期新教材线上检测数学试题(已下线)2010辽师大附中高一数学期中试卷文科安徽省部分省示范中学2018-2019学年高一下学期期中数学试题(已下线)【新教材精创】9.1.2余弦定理(第1课时)练习(1)安徽省滁州市民办高中2019-2020学年高一下学期期末数学试题2.6.1.1余弦定理与正弦定理 同步练习2020-2021学年高一下学期数学北师版(2019)必修第二册(已下线)2013届广东东莞第七高级中学高三上学期第一次月考文科数学试卷皖江名校2018届高三12月份大联考数学(理)试题人教A版 成长计划 必修5 第一章正弦定理和余弦定理 高考链接(已下线)1.1.2+余弦定理(1)(基础练)-2020-2021学年高二数学十分钟同步课堂专练(人教A版必修5)
名校
3 .
的内角
,
,
所对边长分别是
,
,
,设向量
,
,若
,则角
的大小为___________ .
![](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/b13c4b9012fbb36482a54e71d4391566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4069c4b9368ce2aced50ed7b647c547d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ee59964f020fc52b5ba66a3f5fcc3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2020-03-30更新
|
226次组卷
|
2卷引用:辽宁抚顺十中2019-2020学年高一下学期新教材线上检测数学试题
12-13高三上·云南西双版纳·期末
名校
4 . 已知
,
,且
.
(I)将
表示成
的函数
,并求
的最小正周期;
(II)记
的最大值为
,
、
、
分别为
的三个内角
、
、
对应的边长,若
且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66022fa9552b816b44ffaa7493eebf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501d56e9bff159daeac611540242d2b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3401a0f05b6fe79c2b2969b95fbbec.png)
(I)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(II)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2013/4/12/1571183655829504/1571183661449216/STEM/b195d2400107438b99143a6ed76fc9c5.png)
![](https://img.xkw.com/dksih/QBM/2013/4/12/1571183655829504/1571183661449216/STEM/c25111573b9a44358a215c68aa766e45.png)
![](https://img.xkw.com/dksih/QBM/2013/4/12/1571183655829504/1571183661449216/STEM/a044e8b2453a4556a05b49781af98381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://img.xkw.com/dksih/QBM/2013/4/12/1571183655829504/1571183661449216/STEM/82033a40997b43fd8354eb541b4f4be0.png)
![](https://img.xkw.com/dksih/QBM/2013/4/12/1571183655829504/1571183661449216/STEM/b88785e1de1f4efaa95075a80e0f94ce.png)
![](https://img.xkw.com/dksih/QBM/2013/4/12/1571183655829504/1571183661449216/STEM/b5d7dc240bc04453b06346799f6825af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cae3b61f7328adee0f2ceec415a846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69225cfdfbc0a9a1ccfdd15c46353b8f.png)
您最近一年使用:0次
2016-12-02更新
|
1306次组卷
|
4卷引用:辽宁抚顺十中2019-2020学年高一下学期新教材线上检测数学试题
辽宁抚顺十中2019-2020学年高一下学期新教材线上检测数学试题(已下线)2013届云南景洪第一中学高三上期末考试文科数学试卷贵州省思南中学2017-2018学年高二上学期第一次月考数学试题贵州省遵义市湄潭县湄江中学2017-2018学年高二上学期第三次月考数学(理)试题
名校
解题方法
5 . 已知
,
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77ef2663c87cfd96cdf8e863ef2438c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831285e81974deb64c7f60bce0eaafb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4715c73a8cb587b701198e1af73e1b05.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次