名校
解题方法
1 . 若
为锐角,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207b77aa3cf9351cf7ee25827f0688fd.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9da049c686ff81df5d6645ef51e993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207b77aa3cf9351cf7ee25827f0688fd.png)
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2 . 已知
,且
.
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140d770d2bcf921a2bc29267fa69aafc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bec99b0f7da69dd2f6ef8e88c35b81.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9c223818b3de9dc4e2ba6201532b8b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c463c84a42ab52bbf86220728c94c185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c1f914da4657eca7865982b130b299.png)
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解题方法
3 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b21c1ca840ac0f0c4715160fb29753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
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解题方法
4 . 已知
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda318adf65c6b6fd45f651365f52346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84effab46d6bfc6cb110963e027a6b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2024f720b6d912e68fe6ab164852a6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
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23-24高一下·上海·期末
解题方法
5 . 已知
,
,且
.
(1)求
的值;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6b1670b2b446ace5bc12d7385b8e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb9e3b2b77bc9b54f3ae0b332e705c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed53925cace8212e87a4d3bad6463718.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
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6 . 在平面直角坐标系
中,以
轴的正半轴为始边作锐角
和钝角
,它们的终边分别与单位圆交于
两点.
(1)当
时,求
的值;
(2)当
时,求角
的值;
(3)当
时,记角
,求满足等式
的所有
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/8e3a1467ecf286e3cadaf5aa006606f2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db84d12c93e5cb29ab0cbd72781ee1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71bf76a178d1023278f4e1a444c0f10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f347a1bd45e8fe728bef4952ff2e6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080bfcb3925553e2447ab46dcc955d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45173e73a35ed9d35bf3fd96413115cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024高一下·上海·专题练习
解题方法
7 . 若
为第一象限角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e1c60dfa06d583e16efdf2cf49bd5f.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e1c60dfa06d583e16efdf2cf49bd5f.png)
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2024高一下·上海·专题练习
解题方法
8 . 已知
和
是关于
方程
的两个实根.
(1)求实数
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0b4269e488892af37ad0d8a47b9e22.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06f37bd322af6e273ceb66bac49a716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7aee715ac87a76f7a00996af77481ed.png)
您最近一年使用:0次
名校
解题方法
9 . 已知
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612615a34ba56b1ca7c7835b467ae33c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd1186ddfd5084652b5f93fff8aeda0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e470ca2c6317c85aaa2435061449af2a.png)
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名校
10 . 已知
为第二象限角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1e6929729f58afccce99b3ae8fe9c5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eb02421d867d06df9628e7a4850f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1e6929729f58afccce99b3ae8fe9c5.png)
您最近一年使用:0次