24-25高一上·全国·课后作业
1 . 求下列函数值:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
.
利用已学过的三角函数公式,你还能求出哪些角的三角函数值?请举3个例子.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b01d2bf1b175c7675c2992e152d866.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4044c638b71133bf8cc9e0663b7154.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b07244f0512ab0e629823a5859b3c46.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccea759e9d7079f3f4ebf5c65ba75fbe.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497fab1727384e3bbf3544e8af004333.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e528a13e9764255b340732ffb3a87a3d.png)
利用已学过的三角函数公式,你还能求出哪些角的三角函数值?请举3个例子.
您最近一年使用:0次
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解题方法
2 . 如图,设
是单位圆和
轴正半轴的交点,点
是单位圆上的一点,
是坐标原点,
,且
且
.
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9b6016943827cd505ed34b83c865a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f473481e4c02438f9090f1bc1be6a092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f612c3fee55e7aa97672135f781a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ae2bb53fc7db5ffe0ef02b7490a1eb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726db0d1d29fd6df456c946f5da5376c.png)
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3 . (1)已知
,且
,求
的值;
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/277e9a75b7ec584398950db026cdd534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3744ee15af01a8e7c0f126edb5f68132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab335ba2c9cdb9ddb773611d4b776d2e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd69840fea2f8db3c18fa22dcd9b5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db589bebb2f413b51ab7d684f7eb990.png)
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4 . 在
中,角
,
,
的对边分别为
,
,
,已知
的面积为
.
(1)求
;
(2)若
,求
.
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657d0506099dc70230897bcbc306ce88.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f458b9d0e32cf2e7dfe4ed5bb591fbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
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5 . 已知函数
.
(1)若
,求
的值;
(2)若
,
,且
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05bc09a90af66e235d100d7ae5420f8a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ab1c09211e4ca2e29724e0c3fdd36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add73c1cb90aae950ab328fd28d77430.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c66771e48cc0a70f93f6a5131bdbb9c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5c7111f8dcd1f3c3af4ca9ace51b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f55b8836b41be612a52ca9caf97006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be2e0a0816bc26d430622d24909ef97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db796b223b35e52aa7b4114da8072f5.png)
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2024-03-01更新
|
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3卷引用:河北省NT20名校联合体2023-2024学年高一下学期收心考试数学试题
河北省NT20名校联合体2023-2024学年高一下学期收心考试数学试题(已下线)第八章:向量的数量积与三角恒等变换章末重点题型复习(1)-同步精品课堂(人教B版2019必修第三册)江苏省镇江市扬中市第二高级中学2023-2024学年高一下学期3月情况调研数学试题
解题方法
6 . (1)已知
,求值:
;
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/befbe4b20b4cd762776701d9a1e2c287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd2ee34d0b0affac7c380d835af43e75.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3fa27a7a8b6e866d8abc13a61da346.png)
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解题方法
7 . 从①
,②
,③
这三个条件中任选一个,补充在下面的问题中,并给出解答.(若选择多个条件分别解答,则按第一个解答计分)
问题:已知角
是第四象限角,且满足__________________.
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c42835edd0ade77bcf3d424be345b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0c78abef51a480e4d0af15712ac764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68e86a31edd263444a53bb90cdceb8f.png)
问题:已知角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b514d22a745ea6e2fbb189728a2db4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1fa87b96f764eacf59d7355cb364d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
您最近一年使用:0次
解题方法
8 . 已知
,且
均为锐角.
(1)求
的值;
(2)求
的值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc78e9b1e5f0df40783cab32e92707bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f021a65c471011ee58a992ec8bf79f.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
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2024-01-26更新
|
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3卷引用:第10章:三角恒等变换章末检测卷-【寒假自学课】(苏教版2019)
(已下线)第10章:三角恒等变换章末检测卷-【寒假自学课】(苏教版2019)湖南省名校联考联合体2023-2024学年高一上学期期末考试数学试题甘肃省白银市靖远县第四中学2023-2024学年高一下学期开学检测数学试题
2024·全国·模拟预测
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9 . 在
中,
分别是角
所对的边,
为边
上一点.
(1)试利用“
”证明:“
”;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)试利用“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206bc3c5c7f06544ebc6fea332a1e355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac2e0bda3b5fd4591523e4d5e3bcd73.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a5db0f7970a27d651ed8ae0b4f3662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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|
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3卷引用:2024南通名师高考原创卷(一)
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10 . 如图,在正三棱柱
中,底面
的边长为1,P为棱
上一点.
,P为
的中点,求异面直线
与
所成角的大小;
(2)若
,设二面角
、
的平面角分别为
、
,求
的最值及取到最值时点P的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad3a1ea6790177130e16c2124984087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb543b7ff842d6f848dfd6d1c55171b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97604769e3729e3a4d97745fd782dbe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a2fd95dfda3f70bc2d9fcd8380bf99.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/6dba104e3e9519e820ac70b7addcc0d8.png)
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2024-01-11更新
|
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4卷引用:上海市黄浦区2023-2024学年高二上学期期末调研测试数学试卷
上海市黄浦区2023-2024学年高二上学期期末调研测试数学试卷(已下线)第八章 立体几何初步(二)(知识归纳+题型突破)(2)-单元速记·巧练(人教A版2019必修第二册)(已下线)第八章 立体几何初步 单元复习提升(易错与拓展)(2)-单元速记·巧练(人教A版2019必修第二册)广东省中山市第一中学2024届高三第一次调研数学试题