名校
1 . 在
中,角A、B、C所对的边分别为a、b、c,若
,且
.
(1)求角A、B、C的值;
(2)若
,求函数
的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2681f0d1732bcaa8d6362fbd1fa6caa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340136b41ede83397a4dcb43368c88e8.png)
(1)求角A、B、C的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f262a469d41479a734deb7e56726a05.png)
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2 . 已知
,若
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cd41a999930c01d13f952405662d78.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c821115bf1c9f05a45fb5f1ae4622f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da712bc4b03a4ffbc7ce654c39f36854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cd41a999930c01d13f952405662d78.png)
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解题方法
3 . 在平面直角坐标系
中,钝角
的顶点为坐标原点,始边与
轴的非负半轴重合.若
的终边与单位圆交于点
.
(1)求
的值;
(2)求
和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728f6139e519fb0578548516d6fb83b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728f6139e519fb0578548516d6fb83b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe87f687a8e78c3944e878d9bd5e3bf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
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4 . 有四个命题:
(1)对于任意的
、
,都有
;
(2)存在这样的
、
,使得
;
(3)不存在无穷多个
、
,使得
;
(4)不存在这样的
、
,使得
.
其中假命题的个数是( )
(1)对于任意的
![](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/66c248ff3df3de0a7b26c3f77e8eb953.png)
(2)存在这样的
![](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/66c248ff3df3de0a7b26c3f77e8eb953.png)
(3)不存在无穷多个
![](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/66c248ff3df3de0a7b26c3f77e8eb953.png)
(4)不存在这样的
![](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/66c248ff3df3de0a7b26c3f77e8eb953.png)
其中假命题的个数是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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15-16高二上·上海浦东新·期中
名校
5 . 已知
,
与
的夹角为
,
与
的夹角为
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095e9dea543dee61da4f053b18cf3319.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66cf7bfc3d83fa81c06a60e02e51db7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93fa313adc4ac7608ba9449fd755212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248998856b31f8cbaf92c8845b8799e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095e9dea543dee61da4f053b18cf3319.png)
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14-15高二上·上海徐汇·期中
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解题方法
6 . 已知向量
,
,
,则
的取值范围为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfbc77844074ea90d3e62bd8e82c7ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a359ee30cffe0451a187711bd21bf00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4908e3b4e523c042732ccb7c215aac99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5fa3de8948f50d1ce79822ff88aa91.png)
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7 . 在
中,
,则这个三角形的形状为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940a9599dfc0a4da2f65053831938e93.png)
A.锐角三角形 | B.钝角三角形 | C.直角三角形 | D.等腰三角形 |
您最近一年使用:0次
2018-07-30更新
|
704次组卷
|
5卷引用:上海市浦东新区2015-2016学年高一下学期期末统考数学试题
名校
8 . 如图,在同一个平面内,向量
的模分别为1,
,
,
与
的夹角为
,且
,
与
的夹角为135°.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a937ef2b079d4e45686838a37bb38a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911c0a2ab5e2e85f1ad267f41cb96b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7195a0b5b59c9462b9faaf5a9fcfc6e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc1d1b8795e1ce1fa500896959e0271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911c0a2ab5e2e85f1ad267f41cb96b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794efd8cf0cc386faa170d01f357b1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ea2db137f9d684f1b94e6a8bc2165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/31/a2b8cc1d-8cd7-4326-bc0f-69ca8897cca3.png?resizew=129)
您最近一年使用:0次
2018-07-09更新
|
606次组卷
|
4卷引用:上海市行知中学2018-2019学年高二上学期第一次月考数学试题
真题
名校
9 . 在平面直角坐标系
中,已知椭圆
和
.
为
上的动
点,
为
上的动点,
是
的最大值. 记
在
上,
在
上,且
,则
中元素个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7784edbbbb553a8e8d1342f50c119467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a55a309dbeb8ef74d2d95de8f1e4e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595044a7750ab4f84519041979c3d780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a491401a0f279aca26def69f00076f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea8f0f64d234c82af0e55a0ac7bc5571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5fe25a6f8e770fa2cb0a9232667eafe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
A.2个 | B.4个 | C.8个 | D.无穷个 |
您最近一年使用:0次
2018-03-28更新
|
2869次组卷
|
10卷引用:上海市南模中学2019-2020学年高二上学期期末数学试题
上海市南模中学2019-2020学年高二上学期期末数学试题2017年普通高等学校招生统一考试数学(上海卷)(已下线)重难点04 三角函数与解三角形-2021年高考数学【热点·重点·难点】专练(上海专用)浙江省宁波市北仑中学2019届高三下学期第二次模拟考试数学试题(已下线)考向10 三角恒等变换-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)考向31 坐标系与参数方程-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)重组卷04(已下线)专题11 圆锥曲线-五年(2017-2021)高考数学真题分项(新高考地区专用)(已下线)考点52 坐标系与参数方程-备战2022年高考数学(理)一轮复习考点帮(已下线)第13讲 椭圆-3
真题
名校
10 . 如题(15)图,图中的实线是由三段圆弧连接而成的一条封闭曲线
,各段弧所在的圆经过同一点
(点
不在
上)且半径相等. 设第
段弧所对的圆心角为
,则
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397bbc28dddc21e38d2909fc1333e2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bfcf5d153ed5c727c45d14cdeaa76b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/2cd04b4a-127c-4b80-880c-7bc399ac8839.png?resizew=143)
您最近一年使用:0次
2019-01-30更新
|
1192次组卷
|
7卷引用:上海市七宝中学2016-2017学年高二上学期开学考试数学试题
上海市七宝中学2016-2017学年高二上学期开学考试数学试题2010年普通高等学校招生全国统一考试(重庆卷)数学(文科)(已下线)2010年高考试题分项版文科数学之专题四 三角函数(已下线)2012届海南省洋浦中学高三第三次月考理科数学试卷(已下线)2013-2014学年辽宁葫芦岛一中高一下第一次月考理数学卷江西省南昌市2018届高三第一轮复习训练题数学(四)《三角函数的化简与求值》山东省枣庄市滕州一中2019-2020学年高一上学期12月段考数学试题