解题方法
1 . (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)
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2 . (1)求sin65°cos(﹣35°)﹣sin25°sin145°的值;
(2)已知tanα
,tanβ
,求tan(α+2β)的值.
(2)已知tanα
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9e42dd7d2041076675df759078795d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34efd0021d06e31448496f3673eb2a45.png)
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3 . 已知
.
(1)若
为第三象限角,求
.
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ea55db82683a35eb6f708123a6e582.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba3ed644ddf1c0bcf9b311c014eec0e.png)
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2020-01-19更新
|
174次组卷
|
2卷引用:四川省宜宾市叙州区第二中学校2022-2023学年高一下学期开学考试数学试题
4 . 已知函数
.
(Ⅰ)求函数
的单调递减区间;
(Ⅱ)若函数
的图象向右平移
个单位长度后,所得的图象对应的函数为
,且当
,
时,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b93704eb4d8408f07a3a508b6f5e995d.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8df65891fe8c9b97164880b7f331f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9b9e3b03d3dffaabf9b550183aaae07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ce7dd7114b4f005b850786cc2143cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb85b86422822245b8f854fd074141b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54300e312c4846dea48fc7ecb318fe96.png)
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5 . 已知
.
(1)若
在第三象限,求
的值.
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3ecdab508ee1a94ccbe623ae4dde44.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1486450f300f451e711d2238eaca1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a15d4c61a1c7f76ccd6e4c43c6aaf1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8277243b779353a0e73806182a040e42.png)
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6 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f4bd9e95b56e8bbc1df877aa7d96cb.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f4bd9e95b56e8bbc1df877aa7d96cb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb35690ad9043a1901df99dc8b0614e.png)
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2019-01-02更新
|
2153次组卷
|
4卷引用:四川省成都外国语学校2021-2022学年高一上学期12月月考数学试题
7 . 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
|
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
8 . (1)计算
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243604d21641938c885dbc1701fb0b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0feeb37b641f998ddd14d1d6e51047a1.png)
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2018-12-06更新
|
1119次组卷
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2卷引用:【全国百强校】四川省雅安中学2018-2019学年高一上学期期中考试数学试题
名校
9 . 已知角
的顶点在原点,始边与
轴的非负半轴重合,终边在射线
上.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a520ba16f45093b4ccddfe272c422d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7f480621fe191e1544b1f043c266d7.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17e8bdd802fb562172b488cb06f4616.png)
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2018-02-11更新
|
1749次组卷
|
4卷引用:四川省广安市2017-2018学年高一上学期期末考试数学试题
名校
解题方法
10 . 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)
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