1 . 在平面直角坐标系中,角
以原点为顶点,以x轴的非负半轴为始边,其终边经过点
.求:
(1)
的值;
(2)
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3ac0f54a3b7d3b47d5959f9688e6c3.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d73438ffb0c07eb84b1cc4e554a88e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc523bcfc6fe46ba4dfdad007c70c70.png)
您最近一年使用:0次
2020-02-21更新
|
460次组卷
|
3卷引用:四川省资阳市2019-2020学年高一上学期期末数学试题
2 . 在
中,角
、
、
所对的边分别为
、
、
.已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ceaa9577b85ac6e16bbe915659254c6.png)
.
(1)求
的值;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/3ceaa9577b85ac6e16bbe915659254c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da263cd968d31dcdd45364ef8de4c7b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2d770627f29a7c1fa6659ecee13b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2018-12-31更新
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833次组卷
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4卷引用:【市级联考】四川省乐山市2019届高三第一次调查研究考试数学(文)试题
名校
解题方法
3 . 已知
,
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f60ed35a7e27ea2af5a98103a6cf89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8456f705fe41aabdfb4fcf97c4e14e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8006a4df747294fa6b7c77b37ecb1998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b3b9c7221faacba51bd10b2931deb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b04da7eac640b5b735da7fb5da8cfd.png)
您最近一年使用:0次
2020-09-21更新
|
440次组卷
|
4卷引用:四川眉山市仁寿县第一中学2021-2022学年高二下学期3月月考数学(文)试题
四川眉山市仁寿县第一中学2021-2022学年高二下学期3月月考数学(文)试题山东省日照市五莲县第一中学2019-2020学年高一3月自主检测数学试题陕西省宝鸡市千阳中学2019-2020学年高一下学期期末数学试题(已下线)第09讲 两角和与差的正弦、余弦和正切公式-【帮课堂】2021-2022学年高一数学同步精品讲义(人教A版2019必修第一册)
解题方法
4 . (1)计算:
.
(2)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff74c46d572ec8728aad6156e332d8e.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24b257b51cb751f4a440347ab9c4adb.png)
您最近一年使用:0次
5 . 已知角
的顶点为坐标原点,始边与
轴非负半轴重合,其终边为射线
.
(1)分别求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed8d4fd5c2cda8b9bea800b06cfa7c0.png)
(1)分别求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43a5fef1309a247c29a1a190fd5fcc9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2ff1bb9833a4ccd00f0d3f692c1f9d.png)
您最近一年使用:0次
名校
6 . (1)已知
,求
的值;
(2)已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536e072eb0439a5e5b430cd55a129374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2041366512d0bf466c467227b4a5adf.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382e4bde49b49cb94c0954cb2a4e7c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f82ed4c2f4062575206c822f1917be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db589bebb2f413b51ab7d684f7eb990.png)
您最近一年使用:0次
2020-12-31更新
|
294次组卷
|
3卷引用:四川省广安市第二中学校2022-2023学年高一上学期期末考试数学试题
名校
解题方法
7 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e423cff779069125dbde9e0411e3397b.png)
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e423cff779069125dbde9e0411e3397b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b5bb7863dd7dcc17990b151ce1abfc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7b915277169254e670ea51b693b9fc.png)
您最近一年使用:0次
8 . (1)计算
;
(2)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4bb5ab000c3b319c3aa9102db47674.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf34930dec5e19bc16778dea7a693784.png)
您最近一年使用:0次
解题方法
9 . 已知角
的终边经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135d867eac30e5a4cff409f70464a3fb.png)
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135d867eac30e5a4cff409f70464a3fb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c61592f4e8d63f3c1cbf30d56d57b4.png)
您最近一年使用:0次
名校
10 . (Ⅰ)已知向量
,求
与
的夹角的余弦值;
(Ⅱ)已知角
终边上一点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f7c4577433bf7679a5bc7ef89b0d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
(Ⅱ)已知角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a0cc78c3e209937bd33da16b04044a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83dcba27522169c5d01b2ffe1bd2fe4.png)
您最近一年使用:0次
2019-09-14更新
|
321次组卷
|
2卷引用:四川省宜宾市叙州区第一中学校2019-2020学年高一下学期第四学月考试数学(文)试题