名校
解题方法
1 . 已知
,
,且
,
均为锐角,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06397fbd8b97298fc8bf8f1f42e21d92.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/3eacde1c42151734fdc60f3001b590de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 已知函数
是定义在
上的奇函数,满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048f8d3ee5bf62cefacbd0ee25839932.png)
A.4是![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知锐角
的内角
的对边分别为
,且
.
(1)求角
;
(2)若
,且
的面积为
,求
的周长.
![](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/b5e7ec0d9f2ad086f14ec4f353b375f2.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493dbbbcf8aecaf1b586774ad7846f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
4 . 在
中,角A,B,C所对的边分别为a,b,c,且满足
.
(1)求B;
(2)若
为锐角三角形,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01cc498c5c33b19d73362ce3672fb96d.png)
(1)求B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e4d93d6487777af953af02c1be6f91.png)
您最近一年使用:0次
2023-10-24更新
|
1221次组卷
|
2卷引用:湖南省长沙市周南中学2022-2023学年高二上学期暑假学习评价检测数学试题
解题方法
5 . 已知
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef966cdd137b3b10e290201b4d17542e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc4b61fc602d0d8fa5622077945ea37.png)
您最近一年使用:0次
2023-10-09更新
|
105次组卷
|
3卷引用:内蒙古巴彦淖尔市临河区第三中学2021-2022学年高二(计算机班)上学期期末数学试题
6 . 将函数
的图象向左平移
个单位长度后得到函数
的图象,若
为偶函数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de813ed8d61362bbd2e2a26c550c87e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7ea65be0351e839d45d598dfb254b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
A.函数![]() ![]() | B.函数![]() ![]() |
C.函数![]() ![]() | D.函数![]() ![]() |
您最近一年使用:0次
2023-10-08更新
|
342次组卷
|
2卷引用:湖南省株洲市第二中学2021-2022学年高二下学期第三次月考数学试题
解题方法
7 . 给出一个算法的流程图,若
,其中
,则输出结果是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752ab417fa29986fdbde703fd4b129ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d11075c6e998f67f8b6d6eab30d86bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/cc2578cf-d34e-4ef8-b5e0-6f571c4ec726.png?resizew=157)
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8 . 在①
,②
,这两个条件中任选一个,补充在下面的横线上,并加以解答.
在
中,角
所对的边分别为
,且满足________.
(1)求角
的大小;
(2)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
,垂足为D,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371c7db7303d93308428e0d3642a7810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec217f2eaa478bfa6d5180cd170ab19c.png)
在
![](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)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bae5203f4b4acf23779114b3466e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
9 . 已知函数
(其中
为常数,且
)有且仅有五个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905f02739bd314951c2e411035c11e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90fdd965a7d851f528f6d181bd7225b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 我国扇文化历史悠久,其中折扇扇面是由两个半径不同的同心圆,按照一定的圆心角被剪而成,如图所示,该扇面的圆心角为
,
长为
,
长为
,则扇面
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/b4e94951-bbd5-4157-b2a6-76ba558b8a6e.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c899dd9f2d16790c36fb2590b1fb7407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dba908a505cff93e0b297d00b82a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/b4e94951-bbd5-4157-b2a6-76ba558b8a6e.png?resizew=153)
A.![]() | B.![]() | C.![]() | D.![]() |
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