1 . 已知
是定义在
上的函数,且满足
.
(1)设
,若
,求
的值域;
(2)设
,讨论
(
为常数,
)在
上所有零点的和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d75edffb1e86bf1df97a16f1d0a6f7a.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110c3e340bf99008eb537b2933e82dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88db70cffaef115664914c18deee87b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c410d77654ba5d20a0061e6e01473a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0ac787d88c2bb019e1437f08e1bbf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3671a2c95a100f42dfb09bfc1f65af.png)
您最近一年使用:0次
2023-06-28更新
|
783次组卷
|
4卷引用:第五章 三角函数(32类知识归纳+38类题型突破)(6) -速记·巧练(人教A版2019必修第一册)
(已下线)第五章 三角函数(32类知识归纳+38类题型突破)(6) -速记·巧练(人教A版2019必修第一册)【人教A版(2019)】专题03三角函数(第三部分)-高一下学期名校期末好题汇编湖北省十堰市2022-2023学年高一下学期期末数学试题(已下线)专题04 三角函数恒等变形综合大题归类 -期末考点大串讲(苏教版(2019))
名校
2 . 已知函数
是定在
上的函数,且满足关系
.
(1)若
,若
,求
的值域;
(2)若
,存在
,对任意
,有
恒成立,求
的最小值;
(3)若
,要使得
在
内恰有2022个零点,请求出所有满足条件的
与
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542f54434f3b4f89ca58deacbc59f83c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f830d86c8c625b2cc9e68bd6ef116c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f830d86c8c625b2cc9e68bd6ef116c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5223ece2f8f76850c49e2505304532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d6cde03a4f2e49579650b7704598a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dffb544ddf83575a81c68bc450cf7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a77f949e1d6cbcefa0e77ba0225c122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0501be47c6bf72d546124cb582d5c455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
3 . 若函数
满足
且
(
),则称函数
为“
函数”.
(1)试判断
是否为“
函数”,并说明理由;
(2)函数
为“
函数”,且当
时,
,求
的解析式,并写出在
上的单调增区间;
(3)在(2)条件下,当
,关于
的方程
(
为常数)有解,记该方程所有解的和为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f865658d52dc9a5cff15e6f68d619b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac57a4fb21a142b8037a125c3dc191f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b21ccafa1ea9f2bf63343c1e09069c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6404751e42986a04f33c28167ea2dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be95cb9223378f3d4e3a90edad4f6b9.png)
(3)在(2)条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8aee4194937e6f7ea194b629f5cd05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2023-01-07更新
|
2760次组卷
|
7卷引用:沪教版(2020) 必修第二册 新课改一课一练 期中复习A
解题方法
4 . 已知
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e850c81552dba41c365d90482708c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34bbb591a36ed03340ccc0a18e12e3c6.png)
您最近一年使用:0次
5 . 已知平面向量
,
,则
的最大值是_______ ,最小值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea59c469fe9d5e6ebed4832b624729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340c7f7e0c8a87a33142b896c8f506c5.png)
您最近一年使用:0次
2020-03-19更新
|
1901次组卷
|
3卷引用:专题4-1 三角函数性质、最值和w小题归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)
(已下线)专题4-1 三角函数性质、最值和w小题归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)2020届浙江省名校协作体高三下学期3月第二次联考数学试题浙江省杭州市桐庐分水高级中学2021-2022学年高三上学期第一次模拟考试数学试题
2020高三·江苏·专题练习
6 . 如图,已知A,B两镇分别位于东西湖岸MN的A处和湖中小岛的B处,点C在A的正西方向1 km处,tan∠BAN=
,∠BCN=
,.现计划铺设一条电缆连通A,B两镇,有两种铺设方案:①沿线段AB在水下铺设;②在湖岸MN上选一点P,先沿线段AP在地下铺设,再沿线段PB在水下铺设,预算地下、水下的电缆铺设费用分别为2万元km、4万元km.
![](https://img.xkw.com/dksih/QBM/2020/2/24/2406147876872192/2406584251727872/STEM/7b2ec0cf5a9f4f75ba700359c495660c.png?resizew=138)
(1)求A,B两镇间的距离;
(2)应该如何铺设,使总铺设费用最低?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://img.xkw.com/dksih/QBM/2020/2/24/2406147876872192/2406584251727872/STEM/7b2ec0cf5a9f4f75ba700359c495660c.png?resizew=138)
(1)求A,B两镇间的距离;
(2)应该如何铺设,使总铺设费用最低?
您最近一年使用:0次
2020-02-25更新
|
931次组卷
|
4卷引用:专题15 以导数为背景的应用题-《巅峰冲刺2020年高考之二轮专项提升》(江苏)
(已下线)专题15 以导数为背景的应用题-《巅峰冲刺2020年高考之二轮专项提升》(江苏)专题17 以三角函数为背景的应用题-《巅峰冲刺2020年高考之二轮专项提升》[江苏](已下线)考点06 函数模型及其应用-2021年高考数学三年真题与两年模拟考点分类解读(新高考地区专用)四川省宜宾市叙州区第一中学校2024届高三一模数学(理)试题
7 . 如图1所示为一种魔豆吊灯,图2为该吊灯的框架结构图,由正六棱锥
和
构成,两个棱锥的侧棱长均相等,且棱锥底面外接圆的直径为
,底面中心为
,通过连接线及吸盘固定在天花板上,使棱锥的底面呈水平状态,下顶点
与天花板的距离为
,所有的连接线都用特殊的金属条制成,设金属条的总长为y.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/ff871517-37f8-41bb-a6f2-5e673374060e.png?resizew=501)
(1)设∠O1AO =
(rad),将y表示成θ的函数关系式,并写出θ的范围;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(2)请你设计θ,当角θ正弦值的大小是多少时,金属条总长y最小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55998a73c6d4a68e1cbc3eaec013d2be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3075315f92dcbbb5e1d458f8b957351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea3322db7cfef12536ef905b934a39e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a32d5a55802e4cabb37d51b0d006623.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/ff871517-37f8-41bb-a6f2-5e673374060e.png?resizew=501)
(1)设∠O1AO =
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(2)请你设计θ,当角θ正弦值的大小是多少时,金属条总长y最小.
您最近一年使用:0次
解题方法
8 . 为美化校园,江苏省淮阴中学将一个半圆形的边角地改造为花园.如图所示,O为圆心,半径为1千米,点A、B、P都在半圆弧上,设∠NOP=∠POA=
,∠AOB=
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/077f3e01-3a2e-4907-aa72-77b190e5b4ec.png?resizew=155)
(1)请用
分别表示线段NA、BM的长度;
(2)若在花园内铺设一条参观线路,由线段NA、AB、BM三部分组成,则当
取何值时,参观线路最长?
(3)若在花园内的扇形 ONP和四边形OMBA内种满杜鹃花,则当
取何值时,杜鹃花的种植总面积最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267572d2dff2dc38cf9251b7f33a3e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2aa046fb3005c8e21faf0133953e13a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/077f3e01-3a2e-4907-aa72-77b190e5b4ec.png?resizew=155)
(1)请用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)若在花园内铺设一条参观线路,由线段NA、AB、BM三部分组成,则当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(3)若在花园内的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2020-02-25更新
|
1063次组卷
|
2卷引用:专题17 以三角函数为背景的应用题-《巅峰冲刺2020年高考之二轮专项提升》[江苏]