1 . 已知函数
,
,
(1)求
的最小正周期;
(2)若
,求
的最大值和最小值,并写出相应的x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e11e87f4094445cb346319fa8567ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21134785a5682aa3de4bfd5cb22a13f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2 . 如图,在平面四边形ABCD中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/7ea285da-b7c3-4b6c-ba8d-e400a9ed54ef.png?resizew=147)
(1)若点E为边CD上的动点,求
的最小值;
(2)若
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/7ea285da-b7c3-4b6c-ba8d-e400a9ed54ef.png?resizew=147)
(1)若点E为边CD上的动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56453bbff6d6c68eb2c00075ffcafb3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5181c4262d398f7b8729ded8ac11ccb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89d566eeab9e3dc7a5d587b8d6e89f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256974896d73dd2e4d791e7a48b651c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6abc69c57972a4efb8301e3308ea9ca6.png)
您最近一年使用:0次
3 . 已知向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180583e27205ded4602125c8685d04de.png)
,且
,
.
(1)求函数
和
的解析式;
(2)求函数
的递增区间;
(3)若
函数
的最小值为
,求λ值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fcde59a204a849a5d2e38c0a917dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180583e27205ded4602125c8685d04de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb966efcfcaed045f58d93123ac998a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02669c4b39f9a4e148f4abbe2ce9b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0ae2e4cee3e94e75d6c6e0a302b6bb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0937528bdf9a8ecbbf90d6cec76ae9f6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedd50c3697d7653e26bc844f930dad9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b723b7d3fb50ac699b3bcb2fb6536013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8b4bbd2f9912adfc9864c0e1e76a9d.png)
您最近一年使用:0次
解题方法
4 . 已知向量
垂直于向量
,向量
垂直于向量
.
(1)求向量
与
的夹角;
(2)设
,且向量
满足
,求
的最小值;
(3)在(2)的条件下,随机选取一个向量
,求
的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b4011155797655789a862283c51890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29cf4c8c5271ced263deb9953dbf1269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65195c92087ec3af768acb09b72d509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6934c1c7839fc78bbc0e81bd411922.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad2e0f39e291976fcffd82bd5182c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180583e27205ded4602125c8685d04de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df9b45b4e5bb933ad573e9caef8bc6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058d8811c63e7a402a329b9b3c9e39c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a93b404f28391884e5d47fc421b01b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69180f9a3200e2674de6a28a4b5a3e6.png)
(3)在(2)的条件下,随机选取一个向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058d8811c63e7a402a329b9b3c9e39c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f9e0e672d40daca8d89de5e9fa5c11.png)
您最近一年使用:0次
名校
5 . 在△ABC中,角A,B,C的对边分别为a,b,c,若
,
,则
在
方向上的投影为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f90aff0ea9fb08a5790627aa4de8704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a41ac4035d53ae79bf8d6b8ff4172e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a1b3d5f4068fbcba6e4b47971d51a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00490134f8caa9cc28910fb1aaff85e7.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2020-03-04更新
|
1689次组卷
|
6卷引用:四川省遂宁市2018-2019学年高一下学期期末数学试题
四川省遂宁市2018-2019学年高一下学期期末数学试题四川省泸州市泸县第一中学2019-2020学年高一下学期第四学月考试数学试题四川省眉山市2019-2020学年高一下学期期末考试数学试题云南省昆明市官渡区第一中学2019-2020学年高二上学期开学考试数学试题重庆市缙云教育联盟2020-2021学年高二上学期10月月考数学试题(已下线)8.1.1 向量数量积的概念-2020-2021学年高一数学课时同步练(人教B版2019必修第三册)
6 . 如图为某区域部分交通线路图,其中直线
,直线l与
、
、
都垂直,垂足分别是点A、点B和点C(高速线右侧边缘),直线
与
、
与
的距离分别为1米、2千米,点M和点N分别在直线
和
上,满足
,记
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/82429b0d-da08-4e07-87b2-a11d972234bd.png?resizew=258)
(1)若
,求AM的长度;
(2)记
的面积为
,求
的表达式,并问
为何值时,
有最小值,并求出最小值;
(3)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36f1cab096f5d43d9d0762193affbc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12777a96242feadf7964af7823b7450c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5994a657fa9205d55720d0f0b4d9e6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/82429b0d-da08-4e07-87b2-a11d972234bd.png?resizew=258)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8135ce2fc33a303efd2087106709d44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8135ce2fc33a303efd2087106709d44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8135ce2fc33a303efd2087106709d44e.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd90f1d0c711f4bbda393065d8f894e.png)
您最近一年使用:0次
解题方法
7 . 已知
,
,其中
,
,且函数
在
处取得最大值.
(1)求
的最小值,并求出此时函数
的解析式和最小正周期;
(2)在(1)的条件下,先将
的图像上的所有点向右平移
个单位,再把所得图像上所有点的横坐标伸长为原来的2倍(纵坐标不变),然后将所得图像上所有的点向下平移
个单位,得到函数
的图像.若在区间
上,方程
有两个不相等的实数根,求实数a的取值范围;
(3)在(1)的条件下,已知点P是函数
图像上的任意一点,点Q为函数
图像上的一点,点
,且满足
,求
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5315b8f0ce7820c865bcd53b5227576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88dc8fe8834fd3e3fad272a042fc4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84627fa0b991f9a290727270a4d32aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720091d877ca5e2837b0f410fb99631d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)在(1)的条件下,先将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f2adf58ee9fe27c07d5a863be48b62e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b3a7dd6b25a668ef1fbd2bb0be60dd.png)
(3)在(1)的条件下,已知点P是函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3d641761af730cc20b05a79fad66f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0762040da3c416619d44a51c6c99ab9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd5973a979d2a822b829334cbb253b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da89d1db781544a974035e6a7259891.png)
您最近一年使用:0次
8 . 已知函数
的图像如图所示,关于
有以下5个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/c86e06bc-6d63-4da6-a7cb-3ff072ab1284.png?resizew=157)
(1)
;(2)
,
;(3)将图像上所有点向右平移
个单位得到的图形所对应的函数是偶函数;(4)对于任意实数x都有
;(5)对于任意实数x都有
;其中所有正确结论的编号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703b4493b66a538140dd12bb3b268a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/c86e06bc-6d63-4da6-a7cb-3ff072ab1284.png?resizew=157)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c404ebac6d321a29190c57b1c9c55ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e661ad31aa4c6d8684923cf904bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c782473400ca663779f6fe453a1c6e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777558ddf6668762fc108676d1df3b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fcdda8dfbe46022d93f9d1b4e1d18c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b144edc2aa16ea1268d7af0113ad839f.png)
A.(1)(2)(3) | B.(1)(2)(4)(5) | C.(1)(2)(4) | D.(1)(3)(4)(5) |
您最近一年使用:0次
9 . 已知函数
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfd88961b692edcc69fd9f1d3d83061.png)
A.函数![]() ![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.若实数![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2020-03-03更新
|
1225次组卷
|
7卷引用:山东省日照市莒县、岚山2018-2019学年高一下学期期中数学试题
名校
10 . 设
为锐角三角形,则直线
与两坐标轴围成的三角形的面积的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b988f0a4434e213eebed6c2568e413a2.png)
A.10 | B.8 | C.4 | D.2 |
您最近一年使用:0次