解题方法
1 . 已知动点P满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68dc0fa15c2cd71c6444d061ad34fd96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a404c2b9daa4953886fa579925f8b985.png)
A.10 | B.8 | C.6 | D.2 |
您最近一年使用:0次
2 . 若
是一个等差数列的前
项和,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b307f5da94440c5e2b68054400bbe763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.-1 | B.0 | C.1 | D.任意实数 |
您最近一年使用:0次
解题方法
3 . 已知P是
内部一点,且
,则
面积之比为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f103b0e53465079c06b0696496150d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f911213d424b50aa362ae34d4f78230.png)
A.1:3:5 | B.5:3:1 | C.1:9:25 | D.25:9:1 |
您最近一年使用:0次
解题方法
4 . 求出满足下列条件的直线方程
(1)经过点
且与直线
垂直;
(2)经过点
且在两条坐标轴上的截距相等.
(1)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ab0fe1a3ca4e20f8393a8026229c54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672d32a17beb68aaa726cdb1002554e8.png)
(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7c685526c283f0b8290b2bcfb0b89b.png)
您最近一年使用:0次
5 .
的图像如图所示,已知A、B是两个相邻的对称中心,C是两相邻对称中心之间的最高点,A( -1,0)且
在
方向上的投影为2,则
的表达式是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/675c3d00-6ec5-432f-8ce1-e94e6ce7b86c.png?resizew=200)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0d5af57ed7bf74aa6526173a0cea44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/675c3d00-6ec5-432f-8ce1-e94e6ce7b86c.png?resizew=200)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
6 . 已知
恒成立,则
的最大值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36fbef4042281a89deccb71470765cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
解题方法
7 . 已知
为奇函数.
(1)求
的值;
(2)若
,
,求
的值;
(3)当
时,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91c52724c5ab0d36c22d84e1670caf7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da256819b7a7f15c1c1ae32c3b8c9193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96119cc3005adf559140161bd872143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6c487eb2719ca41ee5ab54701e29b3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5cf9c12181dd8683944b2b30bf8e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4a4cfb52d401764105135cd21d6568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbc4174e43957bd666d2467faced6e2.png)
您最近一年使用:0次
2022-06-14更新
|
1107次组卷
|
3卷引用:四川省德阳市2020-2021学年高一下学期期末数学试题
解题方法
8 . 已知
(Q为有理数集),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e85cffc07485b561ebaa8518c3dbae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75563bc7173ab38bffd057d024b7d1c4.png)
A.![]() | B.1 | C.-1 | D.0 |
您最近一年使用:0次
解题方法
9 . “绿水青山就是金山银山”是时任浙江省委书记习近平于2005年8月在浙江湖州安吉考察时提出的科学论断,随着生态环境治理的不断加强,园林局美化城市的功能日益凸显.时值中国共产党成立100周年之际,某市园林局计划把一块形状为等边三角形的边角地开辟为特种花草栽种基地,如图,边角地
是边长为100米的等边三角形,根据实际情况,需在基地修一条直行道路
在边
上,
在边
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/72a59f44-0e71-4273-b12a-41509f3d9971.png?resizew=200)
(1)若
把基地分成周长相等的两部分,设
的长为
米,试把
的面积表示为
的函数
,并求出
的定义域及
的最大值;
(2)若
把基地分为面积相等的两部分,当
取多长时,道路
最短.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce82ac8555e0d0a670b5bf6e2ec28374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5676b8028e2217e9cd8b404ca70b9485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58982e012eb84554840ba2d6467f54eb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/72a59f44-0e71-4273-b12a-41509f3d9971.png?resizew=200)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
10 . 已知
有且只有一个零点
,且
.
(1)求
的取值范围;
(2)若点
到直线
的距离为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dca02a6fd6775912beb45f9fe044584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbf1211335bcbc0ebb05414669eda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096be2c9d4d8c10b1584a579d288fef4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c375d40031c6c5d7459dab596623af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55286945a57ad59b5afb424de9dea480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f13f113c5e4bdfeb80d5d0a8dcbf77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次