1 . 已知向量
,
且函数
.在
上的最大值为
.
(1)求常数m的值;
(2)求函数
的单调递增区间;
(3)求使
成立的x的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca3bd214ea37329c4018f00cc245f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9d234fe19f2fd09ddae94d07017d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d48ce747aa1b3a5cbbafe88c5bff9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aadca495170cd7e3df7c4e694af951f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40822dc70f1fbe57e09b4bf918c8ffa7.png)
(1)求常数m的值;
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(3)求使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5479b9a3456d44b5fabdf6a408569fc6.png)
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2 . 在
中,角A,B,C所对的边分别为a,b,c,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c22869d8d645863b9955c9420335db5b.png)
(1)求角A;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c22869d8d645863b9955c9420335db5b.png)
(1)求角A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413f9851aad373d782ae62b308f1de85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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3 . 已知角A,B,C是三角形ABC的三个内角,下列结论一定成立的有( )
A.![]() | B.![]() |
C.若![]() ![]() | D.若![]() ![]() |
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4 . 在
中,
,
,
的对边分别为
,
,
,若
,则
的形状是( )
![](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/a1952011b53d8a859e295aadc91346cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.等腰直角三角形 | B.等腰三角形或直角三角形 |
C.直角三角形 | D.等腰三角形 |
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真题
解题方法
5 . 记
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求A.
(2)若
,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9dc9285c25caa279201f289f18a9f2e.png)
(1)求A.
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc8abc2bc59962ea016dbaa2b696a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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6卷引用:2024年新课标全国Ⅱ卷数学真题
2024年新课标全国Ⅱ卷数学真题(已下线)2024年高考数学真题完全解读(新高考Ⅱ卷)专题04三角函数与解三角形(已下线)2024年新课标全国Ⅱ卷数学真题变式题11-15(已下线)五年新高考专题05三角函数与解三角形(已下线)三年新高考专题05三角函数与解三角形
名校
解题方法
6 . 在
中,角
的对边分别为
,且
.
(1)求
的值;
(2)若
为锐角三角形,求
的取值范围.
![](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/d78340a3105486043276458198f548f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32f2d4d1d2c16c54b2caef17840bfcb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
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昨日更新
|
243次组卷
|
2卷引用:湖南省三湘名校教育联盟联考2023-2024学年高一下学期期中考试数学试题
7 . 函数
在区间
上的最大值为6.
(1)求常数m的值;
(2)把函数
的图象上各点向右平移
个单位长度得到函数
,求
的值;
(3)当
时,求函数
的最小值,以及相应x的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ef71756ef8bfae1442a859d0a60392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff14bdd7f2b48c0ce6ba8696c89fbf68.png)
(1)求常数m的值;
(2)把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.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/1c59e8a5ef964f0eb31e107575fd07a7.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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8 . 把函数
的图象上各点向右平移
个单位长度,再把横坐标缩短到原来的
倍,再把纵坐标伸长到原来的2倍,得到函数
的图象,则正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.![]() | B.![]() ![]() |
C.函数![]() | D.![]() ![]() |
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解题方法
9 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6731e2434b14e56ec42ce0173125bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221ad7bd3ac9073f5b05c6bb26ea8e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e39da856165b3d34f7b53150d2ce40.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
(
,
,
)在一个周期内的图象如图所示,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fcd3cea5f5e2fe943490dcb65d74c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ec7dc63956169362373e179ce6f67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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