已知函数
.
(1)求函数
的单调区间;
(2)当
时,不等式
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e5e97eb635373fb6744d485db2cff2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b0fd50ac74f1578fff87c2e18ffe80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cdc76cf31743c5a96c89dcd6ff1f570.png)
20-21高一上·贵州黔东南·期末 查看更多[3]
贵州省凯里市第一中学2020-2021学年高一上学期期末考试数学试题(已下线)专题8.2三角恒等变换(B卷提升篇)-2020-2021学年高一数学必修第三册同步单元AB卷(新教材人教B版)江西省上饶市横峰中学2020-2021学年高一下学期期中考试数学(理)试题
更新时间:2021-01-23 20:18:58
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecad63b29eabf17c1178f408f887d832.png)
的图象两相邻对称轴之间的距离是
,若将
的图象上每个点先向左平移
个单位长度,再向上平移1个单位长度,所得函数
为偶函数.
(1)求
的解析式;
(2)若对任意
,
恒成立,求实数m的取值范围;
(3)若函数
的图象在区间
(
且
)上至少含有
个零点,在所有满足条件的区间
上,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecad63b29eabf17c1178f408f887d832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8994bc6c1c192e9153b755719d63790e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb076bad84890e24dbdc945ad543cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec5d200b561e4be52ccaaebdc3105d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980150ddde88cc89c1160cb5a5b9ba23.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2462ff6e9070494a37b4343317e9c5d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4360ce512aea78e001e81beaf19e1b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
您最近一年使用:0次
解答题-应用题
|
较难
(0.4)
名校
解题方法
【推荐2】某公园拟对一扇形区域
进行改造,如图所示,平行四边形
为休闲区域,阴影部分为绿化区,点
在弧
上,点
,
分别在
,
上,且
米,
,设
.
的面积
关于
的函数关系式,并求当
为何值时,
取得最大值,最大值为多少平方米?
(2)设
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40b8789cc8d81b3cf64f0b318ab982a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2634b010dd87a83c6825299fa5e2b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc790cfaa59a808c25a7edb95dc29fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259728433d68902065408fb6a34c6d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40b8789cc8d81b3cf64f0b318ab982a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e06ca53803f042a5eca99f56a70f05e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐3】在路边安装路灯,灯柱AB与地面垂直(满足
),灯杆BC与灯柱AB所在平面与道路垂直,且
,路灯C采用锥形灯罩,射出的光线如图中阴影部分所示,已知∠ACD是固定的,路宽
.设灯柱高
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/19e0580f-1ad2-4837-ab34-58076f4ddfce.png?resizew=137)
(1)经测量当
,
时,路灯C发出锥形灯罩刚好覆盖AD,求∠ACD;
(2)因市政规划需要,道路AD要向右拓宽6m,求灯柱的高h(用
来表示);
(3)在(2)的条件下,若灯杆BC与灯柱AB所用材料相同,记此用料长度和为
,求S关于
的函数表达式,并求出S的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e4a96362f3fbcc0b4db0ee75845ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ebabc66d1fd89ace4bad7cb33ac46b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c762afba855b4c8fe7f4ff17fd93a8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/19e0580f-1ad2-4837-ab34-58076f4ddfce.png?resizew=137)
(1)经测量当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7b9d9bf0d5fc25c99170ab27fa4045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffe0290cc6d772e27c6841c77213464.png)
(2)因市政规划需要,道路AD要向右拓宽6m,求灯柱的高h(用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(3)在(2)的条件下,若灯杆BC与灯柱AB所用材料相同,记此用料长度和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f5ae35ab983f925307b1d524953e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
【推荐1】在
中,
.
(1)求
;
(2)再从条件①,条件②,条件③,条件④这四个条件中选择一个作为已知,使
存在且唯一确定,若D是
边上的中点,求
的面积.
条件①:
,
;
条件②:
,
;
条件③:
,
;
条件④:
,
.
注:如果选择的条件不符合要求,第(2)问得0分;如果选择多个符合要求的条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1af751934461a7046db4e5ab355040.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
(2)再从条件①,条件②,条件③,条件④这四个条件中选择一个作为已知,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcaabbc3dfc41a697d94ce30a5525d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952eb5a219e0d6eb4b039092da70b865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7806bf3865558f820a9bace47198fc41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
条件④:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f425a37c8ec6a3c686cfb21c79064d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
注:如果选择的条件不符合要求,第(2)问得0分;如果选择多个符合要求的条件分别解答,按第一个解答计分.
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐2】在△ABC中,角A,B,C所对的边分别为a,b,c.且满足(a+2b)cosC+ccosA=0.
(1)求角C的大小;
(2)设AB边上的角平分线CD长为2,求△ABC的面积的最小值.
(1)求角C的大小;
(2)设AB边上的角平分线CD长为2,求△ABC的面积的最小值.
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】已知向量
=(4cos2(
-
),cosx+sinx),
=(sinx,cosx-sinx),设f(x)=
•
-1
(1)求满足|f(x)|≤1的实数x的集合;
(2)若函数φ(x)=
[f(2x)+tf(x)-tf(
-x)]-(1+
)在[-
,
]上的最大值为2,求实数t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(1)求满足|f(x)|≤1的实数x的集合;
(2)若函数φ(x)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851c295c4718347e23bf7bf517862bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】阅读下面材料:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7aa5415c4dd10d761bbb62c3c7065ba.png)
,解答下列问题:
(1)用
表示
;
(2)若函数
,
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7aa5415c4dd10d761bbb62c3c7065ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abcdbda84e273db0717dc1047642169.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e039219978242ec380e66de6cf9bab8.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd73dc6d4fe8db8f39e14a733442e244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d49ec515fb1fdc93ca4dda443326ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐1】已知
,
.
(1)求当
时,
的值域;
(2)若函数
在
内有且只有一个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8289a124f1b1da29df10650bed39df.png)
(1)求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53496ae2397150370142b5195a1a39c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知
.
(1)求
的单调递增区间;
(2)若
对任意的
恒成立,求
的取值范围.
(3)已知函数
,记方程
在
上的根从小到大依次为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73044668c09fa1df5d80a712cb4d6da7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a328e39ba9efb036a7978369837e4f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7501d3008f82bb553c44817b6bd3482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba00268d1543f51753236f13554ebbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2160a930ae5fcf920b440cd3a363d90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c64e43b6c283f53708f225b43ccd105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed83f7c530ce8ae3063beabb06561d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d97fb830e8b359157a2999c922ec837.png)
您最近一年使用:0次
解答题-计算题
|
较难
(0.4)
【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918fc98ae5feceae4b8e47e37444b184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff46406cf7f298db70f81da8ea0ea4e0.png)
(1)化简
的表达式.
(2)若
的最小正周期为
,求
的单调区间
(3)将(2)中的函数f(x)图像上所有的点向右平移
个单位长度,得到函数
,且
图像关于
对称.若对于任意的实数a,函数
与y=1的公共点个数不少于6个且不多于10个,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918fc98ae5feceae4b8e47e37444b184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff46406cf7f298db70f81da8ea0ea4e0.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2f9c1d7b5f7e5c665ff797dd9a974a.png)
(3)将(2)中的函数f(x)图像上所有的点向右平移
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ace9a40f02f9383d80d8e4b151c9fe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641c725e03528c8661a2ef774d3d248e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次