1 . (1)设
,
.求证:
.
(2)已知
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad91e04a5faf7bc002d8bd42cd4a734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e71e060762829453dd65fd04d68e67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbf30e439b055d49fbd14a552ad974c.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05692a47c5a4e77c6854b711b52cff09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e79790bc59b265e85dcf1575f15401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129c549fd18b55bac820a613e9846d28.png)
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解题方法
2 . 已知
,
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e89799903030467042646f3e1014723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b992104248a854e6e033c26602aff813.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930078add83e94cd73cd1f6ebdcb23ce.png)
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3 . 已知角
的终边经过点
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e8636a2a9c4b3d588a9d29f24ec0ff.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceee9d45a68f88238eb0ef76d95a1a7.png)
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2卷引用:北京市第四中学顺义分校2021-2022学年高一下学期期中考试数学试卷
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4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94ba16b70921bce4f04010ba8270ab5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94ba16b70921bce4f04010ba8270ab5.png)
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2卷引用:重庆市2022-2023学年高一上学期期末数学试题
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5 . 化简:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6529173967b1c32305d08f308dcc817.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6529173967b1c32305d08f308dcc817.png)
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2023-01-31更新
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5卷引用:河北承德第一中学2022-2023学年高一上学期期末模拟数学试题
河北承德第一中学2022-2023学年高一上学期期末模拟数学试题(已下线)专题训练二 二倍角公式和三角恒等变换技巧高分过关必刷题(已下线)10.3 几个三角恒等式2-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(苏教版2019必修第二册)(已下线)专题04 二倍角的三角函数-期中期末考点大串讲(苏教版2019必修第二册)河南省焦作市第一中学2022-2023学年高一下学期4月月考数学试题
名校
6 . 已知函数
.
(1)求函数
的最大值及此时
的取值集合;
(2)当A,
,
为
的三个内角,已知
,
,且
为锐角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19691b5034fde9d1aa640bf1910b5630.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当A,
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad22523bf8180bf2a00c0dd249efd8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095538013c5bb4da083ea5ef917d065e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
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7 . 已知
为锐角,
,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc14778010a33f90902ff17b1ec0ac73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db73deb6fa502e49e3c873ef076fbc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710be94194896bce781527e733acb362.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e619d36b4b58c13da08ab8f5695bfdfb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fe9f2f9aa8d0d24bd528b7fce71b80.png)
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解题方法
8 . 已知
.
(1)求:
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689b6138b2025247eae92b38e481a4a5.png)
(1)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7e5a3e45916928faf50bfb3d3d0eef.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c1a764c0f58f69357d4cd790d3a5d4.png)
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9 . 已知
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69aca84fbbde185d50148e3d4ebaf591.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be2e0a0816bc26d430622d24909ef97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d149527e77c0f21f324469646f19085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69aca84fbbde185d50148e3d4ebaf591.png)
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10 . 已知
,
,
,
为锐角,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92852189b59df2d81484fa33ff0f9cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77bf00f93748486dd88cc86b4f1c20ae.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/63fe57d4fbae536de2e641d9d349fcf1.png)
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