解题方法
1 . 设
,
是双曲线
:
的两条渐近线,若直线
与直线
关于直线
对称,则双曲线
的离心率的平方为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb3c8402f23ac618091e4385fc1aea1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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昨日更新
|
217次组卷
|
4卷引用:2024届青海省西宁市大通县高考四模数学(理)试卷
2 . 若函数
的图象向左平移
个单位长度后,得到函数
的图象,下列关于函数
的说法中,不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a786626484df4a5b4652076079a97ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8ae071199874d9d74a4919a58902f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.函数![]() ![]() |
B.函数![]() ![]() |
C.函数![]() ![]() ![]() |
D.函数![]() |
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名校
解题方法
3 . 在
中,角
的对边分别为
,已知
.
(1)求
;
(2)若
为
边的中点,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8da3561f20a8aa399418172ee725549.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc28736bfbaea0c11e0c7b890ef2ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
2024-06-11更新
|
1760次组卷
|
5卷引用:2024届青海省西宁市大通县高考四模数学(理)试卷
解题方法
4 . 在平行四边形
中,
,
,
,沿
将
折起,则三棱锥
的体积最大时,三棱锥
外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdaf0d5ffc528a3cd85c79e3317c440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-06-08更新
|
616次组卷
|
3卷引用:2024届青海省西宁市大通县高考四模数学(文)试卷
名校
解题方法
5 . 在
中,内角A,B,C所对的边分别为a,b,c,下列叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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2024-05-31更新
|
511次组卷
|
2卷引用:青海省西宁市第十四中学2023-2024学年高一下学期期中考试数学试卷
解题方法
6 . 设函数
,
为第四象限角.
(1)化简
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b33c77370a3b01b618ba6c224ee1c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b72136837fdf1c0f625ad7284c7f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de41fe0f41d4e8b9af73a10f569f4b1.png)
您最近一年使用:0次
名校
解题方法
7 . 在
中,角
的对边分别是
,若
,
,则( )
![](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/0549845c37d3b0f9a6f37afe1c12d7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e6c3c6512fb5acc7838279d5550a4a.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
8 . 已知函数
在
上的图象大致如图所示,则
的最小正周期为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df2092f86025e28bf7637fd419251c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877e6c30566e9d9b11ecf5b78f4c5e73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9a91cfe0b55c449b299d9e099815a3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-01更新
|
380次组卷
|
3卷引用:青海省部分学校2023-2024学年高三下学期联考模拟预测理科数学试题
解题方法
9 . 已知
的内角A,B,C的对边分别为a,b,c,且
.
(1)求B;
(2)若
,
的面积为S.周长为L,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d917da709eb4054890c6a7295d4219.png)
(1)求B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6271fd64db6ec6bf6407bd9ed7547044.png)
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2024-04-25更新
|
487次组卷
|
2卷引用:青海省部分学校2023-2024学年高三下学期联考模拟预测理科数学试题
名校
解题方法
10 . 在矩形
中,
,点
是线段
上一点,且满足
.在平面
中,动点
在以
为圆心,1为半径的圆上运动,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b350f49eea871179426525559c16433f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8195e199ac197c36fcfeea057075743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2f4db3ce8ce5c736a8c6dd08e74a54.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-24更新
|
389次组卷
|
2卷引用:青海省西宁市第十四中学2023-2024学年高一下学期期中考试数学试卷