1 . 已知在锐角
中,角A,B,C所对的边分别为a,b,c,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
B.![]() |
C.若![]() ![]() |
D.![]() |
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2 . 如果![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75cb7615ca33b128496114742a1f2dd.png)
(1)求证:
;
(2)若
为三角形的三个内角,判断
与
的大小关系,并予以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75cb7615ca33b128496114742a1f2dd.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e10e76a8cf6e3eb92e57ee971a218a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e263f0291e3df8b6fb866abaf3f4576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbeb449ec91ac7e5798e3b347fd0d107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a25e473dce119ddd92f32fef1dc576.png)
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3 . 下列关系式成立的有( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 下列式子成立的有( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知
、
、
均为锐角,在
、
、
三个值中,大于
的个数的最大值为
,小于
的个数的最大值为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c471bebc8b8905b9f157a51ae4e3fb13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c69cadf2187cbc2bdc15cb118ac2aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df1f181344a91208db0e9eb4a89dda2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
A.3 | B.4 | C.5 | D.6 |
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6 . (多选)下列各式正确的是( )
A.tan ![]() ![]() |
B.tan 2>tan 3 |
C.cos (-![]() ![]() |
D.sin (-![]() ![]() |
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7 . 若,
,
,则( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2024·新疆·二模
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8 . 已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e00749af7666ec04682c093c3f14460.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 定义在
上的函数
满足
的对称轴为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a854d0f45ad11545b9a4f7ad87f650.png)
且
在区间
上单调递增,已知
、
是钝角三角形中的两锐角,则
和
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0326c8521834089fc9e0a6db113931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a854d0f45ad11545b9a4f7ad87f650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed101a281d73991b5b50e9499a5ee3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2c4e672cfe785d0f58d81b8f2eeb85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e07540f22e2eb3ef5eaf3cf0037c25.png)
A.![]() | B.![]() |
C.![]() | D.以上情况均有可能 |
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10 . 设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70050161d248d91516c51d293b9205ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1021ba0883424ff83ceb50b3e7a99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149b75a27eea08d7c97c518e53ec242d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-28更新
|
935次组卷
|
2卷引用:北京市石景山区2024届高三下学期3月统一练习数学试卷