解题方法
1 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d349e2c3367a051931c52bf78e4a595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
A.-1 | B.0 | C.![]() | D.1 |
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2020-10-10更新
|
558次组卷
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5卷引用:福建省漳州市南平市2019-2020学年高三第二次教学质量检测文科数学试题
福建省漳州市南平市2019-2020学年高三第二次教学质量检测文科数学试题福建省漳州市2020届高三高中毕业班第二次教学质量检测数学(文)试题(已下线)第13练 三角恒等变换-2021年高考数学(文)一轮复习小题必刷(已下线)第14练 三角恒等变换-2021年高考数学(理)一轮复习小题必刷陕西省汉中市十校2022届高三下学期第二次联考文科数学试题
2 . (1)已知
,求
的值.
(2)已知角
的终边过点
,
为第三象限角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53317c0a3a62f5a40c51c2b1e49d5b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7759fbbc53ebc9194ea4a204e0fc3e76.png)
(2)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/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adb91c4eea578ed8f41b438200682d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb006ea697b63a914eb487073f0abe1.png)
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名校
3 . 已知
均为锐角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058d23f0c61f7cdc0ac5b5d2c2b46ef5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5438613cda89232a531a69da49dee747.png)
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2019-12-07更新
|
591次组卷
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2卷引用:福建省厦门第六中学2019-2020学年高一3月月考数学试题
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4 . 在
中,角
、
、
所对的边分别为
、
、
,
,
,且
.
(1)求角
的大小;
(2)若
,求
的最大值.
![](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/ed6ee3579002e54dc41fff5d981e779a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5bd87eba9e416e9e568c6c91fc8c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c7703ccedca014a2aa6218fb2de6ef.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74094c51b5ee19992e12e98bfab66d77.png)
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2019-10-09更新
|
6777次组卷
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7卷引用:福建省漳州立人高级中学2022-2023学年高二下学期期中数学试题
名校
5 . 在
中,已知
,
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6b579c69bb90d8d4357890c3bcf1a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264381eddf150479287e20be0007ef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402f1010e94be78552ed4c45548b1b8.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
2019-05-11更新
|
730次组卷
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5卷引用:2017届福建福州外国语学校高三文上学期期中数学试卷
名校
6 . 将函数
的图象向左平移
(
)个单位长度,所得图象对应的函数为偶函数,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0699f03a906081e7bd84e1774f9f21ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7509459e5f133e81c026c4943be51db0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c404f21afc135b598141773f756671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7509459e5f133e81c026c4943be51db0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2018-11-17更新
|
609次组卷
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8卷引用:【全国校级联考】福建省两大名校2018届高三下学期第一次模拟考试数学(理)试题
【全国校级联考】福建省两大名校2018届高三下学期第一次模拟考试数学(理)试题【全国校级联考】福建省莆田市莆田四中、六中2018届高三下学期第一次模拟考试数学(文)试题福建省莆田市仙游第一中学2018-2019学年高三上学期月考数学(理)试题(已下线)2019年一轮复习讲练测【新课标版文】4.4三角函数的图象及三角函数模型的简单应用【讲】(已下线)2019年一轮复习讲练测 4.5 函数y=Asin(ωx+φ)的图象及三角函数模型的简单应用【浙江版】【讲】(已下线)2019年一轮复习讲练测【新课标版理】 4.4三角函数的图象及三角函数模型的简单应用【讲】(已下线)解密06 三角函数的图象与性质(讲义)-【高频考点解密】2021年高考数学(文)二轮复习讲义+分层训练(已下线)解密06 三角函数的图象与性质(讲义)-【高频考点解密】2021年高考数学(理)二轮复习讲义+分层训练
名校
7 . 如图,在平面直角坐标系中,锐角
和钝角
的终边分别与单位圆交于
两点.
![](https://img.xkw.com/dksih/QBM/2018/5/21/1950189256876032/2008203578130432/STEM/d7cf56be73264cce9c3ac3a2e1552ec1.png?resizew=148)
(Ⅰ)如果点
纵坐标分别为
,求
;
(Ⅱ)若
为
轴上异于
的点,且
,求点
横坐标的取值范围.
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/2018/5/21/1950189256876032/2008203578130432/STEM/d7cf56be73264cce9c3ac3a2e1552ec1.png?resizew=148)
(Ⅰ)如果点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180f76399cd60eb0cd53df53b37354f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b8730d5ad106acbe0eda404e6331ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada25f76504c3fd1226da43c94cb4277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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8 . 已知
,则
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef8eb74d404413f9b50022a97eaf85d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b776ae3a7a528a871e4c76a7609c46.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-07-31更新
|
2733次组卷
|
7卷引用:2020届福建省福州第一中学高三下学期开学质检数学(文)试题
名校
解题方法
9 . 已知
.
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae545acb7e92535414d222f947d89b8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc553b54b57192af73728822e2798e88.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63aef4ab86fad4a70fb961d16c92cd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
您最近一年使用:0次
2018-02-03更新
|
697次组卷
|
5卷引用:福建省德化第一中学2022-2023学年高一下学期第一次月考数学试题
名校
10 . 已知函数
.
(1)求函数
的递增区间;
(2)
的角
,
,
所对边分别是
,
,
,角
的平分线交
于
,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373bd6a661178aea8a4f5c64397d3279.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f2d59590aa4817f957ccf6dc23f4d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32e00caafca69265c4992177f6a5ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa6361e919ac07ee6ed642556e1d1ae.png)
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2017-05-09更新
|
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3卷引用:福建省三明市第一中学2018届高三上学期第二次模拟考试数学(文)试题