解题方法
1 .
的值是___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd90c9ff8a48465550e329fbcbd46c6.png)
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2020-07-05更新
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1053次组卷
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7卷引用:陕西省黄陵中学2017-2018学年高二(重点班)上学期开学考试数学试题
名校
解题方法
2 . 在
中,
,则角
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29addda5749876ddd97aa2426f02fb5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-02-11更新
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846次组卷
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3卷引用:天津市红桥区2019-2020学年高一上学期期末数学试题
名校
解题方法
3 . 已知
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5875c2e91cf00419937685cbe79bea.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-09-08更新
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752次组卷
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2卷引用:山西省长治市第二中学2019-2020学年高一下学期期末数学(文)试题
4 . 已知
为锐角,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89bfcb26e017ae990ddd2bd1a9fa35a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad3c1424841f905de42b18326f9acfa.png)
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5 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf176f32caa72eb7567551ee76d1e3cc.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf176f32caa72eb7567551ee76d1e3cc.png)
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2019-07-25更新
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889次组卷
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5卷引用:吉林省乾安县第七中学2016-2017学年高一下学期期末考试数学试题
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6 .
=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b36cf36fa791d12375ae81c90a17b7c.png)
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2020-01-09更新
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689次组卷
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3卷引用:吉林省长春市田家炳实验中学2019-2020学年高一上学期期末数学试题
名校
7 . 在平面直角坐标系
中,先将线段OP绕原点O按逆时针方向旋转角
再将OP的长度伸长为原来的
倍,得到
我们把这个过程称为对点P进行一次T,
变换得到点
例如对点P
进行一次
变换,得到点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150901b786f6646d2db9be33a7aed4d3.png)
(1)试求对点
进行一次
变换后得到点
的坐标;
(2)已知对点
进行一次
换后得到点
求对点
再进行一次
变换后得到点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7038a3e4975c5200d16803885eef7b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352bee5fea6e0f11fffe7decf7ab35c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b87bf7395e0648e156644b8b639644e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a850932927deee38a046bfc236bb35be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5acee354aaa76e0990087cc075172a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7ccf6ada817b9d57fe30a79bacaf23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4acfac1b712c66bba5e73c98fd4b1ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150901b786f6646d2db9be33a7aed4d3.png)
(1)试求对点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea191cdc92920c76fe66702d99130fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616f909e7723fb33b091450010622b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
(2)已知对点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ff60547c603c3a3f6e76755723e1b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1f08f7da3bea90babef0b0e67e7dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6592325d4f66a073a31d8dde0e1a5ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1f08f7da3bea90babef0b0e67e7dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
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名校
8 . 如图,在平面直角坐标系
中,以
轴为始边作两个锐角
,它们的终边分别与单位圆相交于
两点,已知
的横坐标分别为
,
.求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69d166677557cadb3da32b4a7e152e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad3c1424841f905de42b18326f9acfa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/fcf0ed46-4daa-4732-a6f2-b645fe5864c6.png?resizew=147)
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2019-08-21更新
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623次组卷
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2卷引用:新疆喀什第二中学2018-2019学年高一上学期期末考试数学试题
9 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8712e694094827b2e9b5abfc42ec75d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d3193762d583de5f839cff4d8aa5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df89fe4e73e425de82100361c653b3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8712e694094827b2e9b5abfc42ec75d.png)
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2019-08-01更新
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714次组卷
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4卷引用:安徽省皖西南联盟2018-2019学年高二下学期期末联考数学(理)试题
10 . 在平面直角坐标系
中,以
轴为始边,作两个角
,它们终边分别经过点
和
,其中
,
,且
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348a8b9ebfdd3e7e5c92f9f192e07104.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c54d55611c95cdd49c898ee6b0e47c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5ff5a2e7663e6a21ccea3149a10113.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c1f914da4657eca7865982b130b299.png)
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2019-09-19更新
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641次组卷
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2卷引用:河南省南阳市2018-2019学年高一下学期期末考试数学试题