解题方法
1 . 计算下列各式的值.
(1)
;
(2)若
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a25da148295233548491980424e2393.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c40e0fb0c2c9ccf62a61b2175de282d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1aedc11365ff7b4bf0def9a85f5933c.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,
,且
,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4232c02cacf8368b943d22252dd943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea52ac55e2361a8ccc1664fd91abfb96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e70e388af6a9fb1cb4ca416c608d5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0078a8bdbd122ffbbe0c744b985152a5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673f7e66c2a252da4c77c70d90c8cec.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6802fa592c03ef7c4a8c03f3e8932f8f.png)
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2023-06-28更新
|
1103次组卷
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3卷引用:福建省华安县第一中学2022-2023学年高一下学期期末考试数学模拟试题
福建省华安县第一中学2022-2023学年高一下学期期末考试数学模拟试题江苏省南京市六校联合体2022-2023学年高一下学期期末联考数学试题(已下线)模块一 专题4 三角恒等变换转化问题(高一人教B)
名校
解题方法
3 . 已知
分别为
三个内角
的对边,
.
(1)求
的值;
(2)若
,求b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](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/6bfeaf26f178031f78a5545233a2a73f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849dd814e9ca8889700ce62db5b9595f.png)
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2023-06-25更新
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2427次组卷
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4卷引用:福建省普通高中2022-2023学年高二6月学业水平合格性考试数学试题
名校
解题方法
4 . 已知
,
,
.
(1)若
,求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6d589e032939e6135174eac55aa7ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b39dce6da3019033b426ace6a17f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb11486d3a76018fafff7b4b6c3356a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4fed4fec79ff257b45080dfcd667a8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e37ecbf9593c828a9039a0389c2518c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
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2023-06-20更新
|
315次组卷
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3卷引用:福建省莆田市莆田第二中学2024届高三10月月考数学试题
5 . 在平面四边形
中,
,
,
,
.
(1)求
;
(2)若
为锐角三角形,求
的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e63a14e1ced08dc9fb5ddcb268647ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af633abfe3cb03f1836db6c570a5bcc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d79e7020414add95907e061df505ef0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/762ac126a2738f8b7083a1ae2de1735c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
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2023-06-20更新
|
1018次组卷
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3卷引用:福建省漳州市2023届高三第四次教学质量检测数学试题
名校
解题方法
6 . 在平面四边形
中,
是等边三角形,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14895fca109e322c148f2d353265978d.png)
________ ;
的面积是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adce79579360c94699123b74bb2795ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14895fca109e322c148f2d353265978d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-06-17更新
|
142次组卷
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2卷引用:福建省三明市2022-2023学年高一下学期4月期中考试数学试题
7 . 已知
为第二象限角,且
.
(1)求
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8611118ac6577f843867cdc63436e597.png)
您最近一年使用:0次
解题方法
8 .
中,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71807a35b3170fce28ee6edf4c00d083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1466856bf2570685d3629c1f813748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-05-15更新
|
894次组卷
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5卷引用:福建省福州文博中学2022-2023学年高一下学期期末考试数学试题
名校
解题方法
9 . 函数
的部分图象如图所示,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97dad16e4910ec15add074c4077b0e86.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ae98bc3a8c4b9940b6b4f6edcaa75e.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3b5447f3862798236dc34fea6b50a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1540b6b10f07a867618a1eec02e2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6aa92816f29ac8d2127c279cd6fd81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97dad16e4910ec15add074c4077b0e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ae98bc3a8c4b9940b6b4f6edcaa75e.png)
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2023-05-06更新
|
437次组卷
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3卷引用:福建省福州格致中学2024届高三上学期期中考试数学试题
名校
解题方法
10 . 在
中,角A,B,C所对边分别记为a,b,c,若
,
,则
面积的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc20d351d51723c9b0a07a20ac14114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
2023-05-02更新
|
718次组卷
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4卷引用:福建省厦门第二中学2022-2023学年高一下学期5月阶段性考试数学试题
福建省厦门第二中学2022-2023学年高一下学期5月阶段性考试数学试题四川省宜宾市2023届高三三模数学(文科)试题(已下线)高一数学下学期第二次月考01(范围:平面向量,解三角形,复数,立体几何)江西省新余市第一中学2022-2023学年高一下学期第二次月考数学试题