名校
1 . 如图,在四棱锥
中,底面
为正方形,
平面
,M为PC中点.
平面
;
(2)若
,求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96127e45e2dd2494fccb1c0905951f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2023-11-16更新
|
799次组卷
|
2卷引用:上海市宝山中学2023-2024学年高二上学期期终考试数学试题
名校
2 . 如图,在四边形
中,
,
,
,
,
.
的长;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8fb552b9e21dbaba74d11aa747790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d14e0c062448666691bbf505273971a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
2020-08-06更新
|
1286次组卷
|
10卷引用:上海市高一下学期期末真题必刷04-期末考点大串讲(沪教版2020必修二)
(已下线)上海市高一下学期期末真题必刷04-期末考点大串讲(沪教版2020必修二)宁夏银川市三沙源上游学校2022-2023学年高一下学期期末考试数学试题2016届北京市海淀区高三上学期期中考试文科数学试卷【全国百强校】北京师大实验中学2019届高三(上)期中数学(文科)试题天津市滨海新区2020届高三下学期居家反馈数学试题贵州省贵阳市民族中学2020-2021学年高一下学期第一次月考数学试题宁夏中宁县中宁中学2020-2021学年高二下学期第一次月考数学(文)试题宁夏银川市第一中学2023届高三上学期第四次月考数学(文)试题北京市延庆区第一中学2024届高三上学期9月月考数学试题福建省三明市尤溪县第七中学2023-2024学年高一下学期期中考试数学试题
解题方法
3 . 已知函数
,
.
(1)将函数
化简并表示成
(其中
,
,
,
)形式;
(2)用五点法列表并作出函数
一个周期内的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4bf7b8666a1e72505816fe533a1af12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aac99b71c48a2d7c4ba6cd4b1ac7ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1946f3ce67230f215344874c71b100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
(2)用五点法列表并作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2020-07-16更新
|
301次组卷
|
2卷引用:上海市崇明区2019-2020学年高一下学期期末数学试题
解题方法
4 . 在
中,
、
所对的边长为
、
,
,
.
(1)若
,求
;
(2)讨论使
有一解、两解、无解时
的取值情况.
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54a36173cd9b7b28e91619d715cb569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42190fdb24c6e918e06eb4a2ebf8856f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa79a550591eb9e1bd07bced3a08fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)讨论使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
5 . 如图,矩形
的四个顶点分别在矩形
的四条边上,
,
.如果
与
的夹角为
,那么当
为何值时,矩形
的周长最大?并求这个最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/d1107f62-58ff-475b-be66-0e87d11a1e2b.png?resizew=159)
您最近一年使用:0次
名校
6 . 已知函数
的最大值为2,且图像过点(1,1),相邻两对称轴间的距离为2.
(1)求
的解析式.
(2)求
的单调增区间.
(3)计算
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0773064825a7271e567b197b6034ae.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34faeb80c6e7fb011266542774fb1091.png)
您最近一年使用:0次
7 . 如图,一智能扫地机器人在A处发现位于它正西方向的B处和北偏东
方向上的C处分别有需要清扫的垃圾,红外线感应测量发现机器人到B的距离比到C的距离少0.4m,于是选择沿
路线清扫.已知智能扫地机器人的直线行走速度为0.2m/s,忽略机器人吸入垃圾及在B处旋转所用时间,10秒钟完成了清扫任务.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/650b60e0-34a6-4c4c-a07e-a72c7a88cdce.png?resizew=169)
(1)B、C两处垃圾的距离是多少?(精确到0.1)
(2)智能扫地机器人此次清扫行走路线的夹角
是多少?(用反三角函数表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/650b60e0-34a6-4c4c-a07e-a72c7a88cdce.png?resizew=169)
(1)B、C两处垃圾的距离是多少?(精确到0.1)
(2)智能扫地机器人此次清扫行走路线的夹角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
您最近一年使用:0次
2020-02-02更新
|
368次组卷
|
3卷引用:上海市南汇中学2020-2021学年高一下学期期末数学试题
8 . 已知x∈R,设
,
,记函数
.
(1)求函数
取最小值时x的取值范围;
(2)设△ABC的角A,B,C所对的边分别为a,b,c,若
,
,求△ABC的面积S的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f8f15126b96ed528f9bbecf6c0577c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fecc48b4d230f09aad946568153c1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638929b037d0f63a486aec2c645ccee5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设△ABC的角A,B,C所对的边分别为a,b,c,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a7412ae4008dd65cad902ad132711a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
您最近一年使用:0次
2020-02-02更新
|
571次组卷
|
4卷引用:上海市嘉定区2016届高三上学期第一次质量调研(理)数学试题
9 . 在
中,
,
,
.
(1)求
边的长;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4346641491fc90d125ebbd06343382a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de81b52d5caf258f2e0a23dd700650fe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
名校
10 . 设角
,
,其中
:
(1)若
,求角
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82388c7dfbd4b1602fcfcd1700af70ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c4f910e61e6ff17dfb4bd96273f9d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2187ee1ea3b7e47a6283314322e5decf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fd0f5bbf3bed7b44665d0f9d2f4f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
您最近一年使用:0次