1 . 已知向量
,
,
(![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
),实数
,
满足
,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc307c6ce642e21ed1ed8c92e4cf7449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da278e18c0e4dce20a99ee82e2814cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03665223af896ceffba3e90b5b74466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c09f5d417d9e2df0b355ce70d542aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd6917fd70a5ac1e17b05037b383cf8.png)
A.4 | B.![]() | C.32 | D.36 |
您最近一年使用:0次
2 . 若角
的顶点与平面直角坐标系的原点重合,始边与
轴的非负半轴重合,终边以原点为圆心的单位圆交于点
,且
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb93fd26d4bfc2b04ecd9dbd288ef7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda28359a63cf3f3dfeeab4cde5d536c.png)
A.-2 | B.-1 | C.![]() | D.2 |
您最近一年使用:0次
3 . 已知函数
是偶函数,其中
,则下列关于函数
描述正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8cc0f68915013dd7697273b490029d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30d77e30ab9020ff5106815c2cd89791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76902d5d04e64a917a93aa167b64147d.png)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次
2017-05-10更新
|
570次组卷
|
3卷引用:吉林黑龙江八校联合体2016-2017学年高一下学期期中考试数学试题
4 . 《九章算术》是我国古代数学成就的杰出代表作,其中《方田》章给出计算弧田面积所用的经验公式为:弧田面积
(弦×矢+矢2),弧田(如图)由圆弧和其所对弦围成,公式中“弦”指圆弧所对弦长,“矢”等于半径长与圆心到弦的距离之差,现有圆心角
,半径为6米的弧田,按照上述经验公式计算所得弧田面积约是(
)( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/59d6fe55-8cc0-4871-b030-d305cc44215f.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0285158b83e414065881f75b3098ab30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460317e7c26f95b9b29cfe1a89b796d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/59d6fe55-8cc0-4871-b030-d305cc44215f.png?resizew=175)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb491f3eb3ef1f95ab0f90565c9cb94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b4cab645c97f6d1710f803ef6a8436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb491f3eb3ef1f95ab0f90565c9cb94.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-05-10更新
|
993次组卷
|
4卷引用:吉林黑龙江八校联合体2016-2017学年高一下学期期中考试数学试题
吉林黑龙江八校联合体2016-2017学年高一下学期期中考试数学试题吉林省松原市宁江区实验高级中学2018-2019学年高一下学期期末数学试题宁夏回族自治区育才中学2018-2019学年高一下学期期末数学试题(已下线)专题5-2 同角三角函数变形与求值(1) - 【巅峰课堂】题型归纳与培优练
6 . 非零向量
,
满足
,且
,则
与
夹角的大小为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73626ed907f89a6ca8947aa54604fb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b11566002bce957ef8090727758353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 在四边形
中,若
,且
,则这个四边形是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7769c1d7dc9dacd87ee9246a1c059e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfb87ccee8abfaee6e88e6f5e63609f.png)
A.平行四边形 | B.菱形 | C.矩形 | D.等腰梯形 |
您最近一年使用:0次
2017-05-10更新
|
478次组卷
|
2卷引用:吉林黑龙江八校联合体2016-2017学年高一下学期期中考试数学试题
解题方法
8 . 若角
满足
,则角
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e67d5b21e30e99ff4952532056373f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.第一象限角或第二象限角 | B.第二象限角或第四象限角 |
C.第一象限角或第三象限角 | D.第二象限角或第三象限角 |
您最近一年使用:0次
9 . 设向量
,
,
,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f268c67bc01789c661997588a2cc12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1079526683ec76e9af4fece16b2093a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057cdb4057bca398a838e868efd360f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.-1 | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
10 .
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dad3af084f57d83f9115d26afbd51d8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次