名校
解题方法
1 . 求范围和图象:
(1)
的函数图象先向左平移
个单位, 然后横坐标变为原来的
,得到
的图象,求
在
上的取值范围.
(2)如图所示, 请用“五点法”列表,并画出函数
一个周期的图象.
![](https://img.xkw.com/dksih/QBM/2022/3/14/2927732832747520/2937564027559936/STEM/69418aa885c148baad8dd40f0ed7084e.png?resizew=297)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3162d2c7b650bba3e401ffbb1e13bb45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f457df0f9d14437a7f0443bb297e6ee8.png)
(2)如图所示, 请用“五点法”列表,并画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c3d302e263382a01339fa43fece182.png)
![](https://img.xkw.com/dksih/QBM/2022/3/14/2927732832747520/2937564027559936/STEM/69418aa885c148baad8dd40f0ed7084e.png?resizew=297)
![](https://img.xkw.com/dksih/QBM/2022/3/14/2927732832747520/2937564027559936/STEM/c7574a95-f8a7-44e7-a7fd-3fb3a5f67026.png?resizew=376)
您最近一年使用:0次
2022-03-16更新
|
758次组卷
|
3卷引用:浙江省杭州第二中学2021-2022学年高一上学期期中数学试题
名校
2 . 已知直线
的一个方向向量为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4f203f923fa4339ae232e90d0de637.png)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.对于任意的实数![]() ![]() ![]() |
D.向量![]() |
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3 . 我们知道平面直角坐标系内直线的一般式方程为
,对此进行类比,可知空间直角坐标系内平面的一般方程为
;运用上述知识,已知实数
,
,
满足
,则
的最小值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01fa45cefa203889bab7f3b68c60b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a83e5d490ea07656d457fb3d81d4e82.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794361beee8b56d9bf49d8d6a0990811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97502047959344e89522d31c05deff35.png)
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解题方法
4 . 已知圆
的方程为:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892ab6f284e337af4bac6bde5192b780.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/c8e42d80-ec55-4263-9bf5-a2bc7596e123.png?resizew=213)
(1)已知过点
的直线
交圆
于
两点,若
,
,求直线
的方程;
(2)如图,过点
作两条直线分别交抛物线
于点
,
,并且都与动圆
相切,求证:直线
经过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892ab6f284e337af4bac6bde5192b780.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/c8e42d80-ec55-4263-9bf5-a2bc7596e123.png?resizew=213)
(1)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39432979f8ff0a8d43f14e23396d78f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7551011cfb75b26f35b07d6617c6a18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20809f80645980692f5803b6ca3b63e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)如图,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3e8418636248b341d1a18737f2509c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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解题方法
5 . 已知直线
的方程为:
,分别交
轴,
轴于
两点,
(1)求原点到直线
距离的最大值及此时直线
的方程;
(2)若
为常数,直线
与线段
有一个公共点,求
的最小值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc924f15297207938b1ef7b1a81dd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求原点到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e4f618dd9a18d0a2d71f5478b11d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ea412665e3af61cb99cc3cd4764e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
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2021-11-28更新
|
363次组卷
|
2卷引用:浙江省杭州地区(含周边)重点中学2021-2022学年高二上学期期中联考数学试题
名校
6 . 已知集合
,
,甲同学从
集合内取出一个数
,乙同学从
集合内取出一个与
相对应的数
,若希望两位同学取出两个数的和最小,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591dd1d1c4f7ab38f92b95590c1ac360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ce7776e82aa290d9b6caad5c4b4938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de122ae929b1acaff321dec137622ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
A.4 | B.6 | C.8 | D.16 |
您最近一年使用:0次
2021-11-26更新
|
483次组卷
|
2卷引用:浙江省北斗联盟2021-2022学年高一上学期期中联考数学试题
7 . 定义
,已知
,
,
,函数
.
(1)求函数
的解析式;
(2)若函数
的图象与
轴的正半轴有两个不同交点
,
,且这两个交点的横坐标分别为
,
.
(i)求实数
的取值范围;
(ii)求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478e75f2162f25b93d4c337e2829fc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f343ab89b0378d05dcbf475b6e21d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f27a9e9be7b2d16f2eac6f3fa63096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b97b295f88972ba1c7e3cefda0885d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14d82de4864f4cc2f74249ecf5cbffa.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e915b67f8f747698b8b46d37bc453667.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e915b67f8f747698b8b46d37bc453667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(ii)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fef976a0230bdfe3bc758e93987ba8.png)
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解题方法
8 . 若点
是函数
图象上的一个点,则称点
为函数
的一个“
阶点”.当
取任意一个实数时,对于函数
图象上对应此时的
值的“
阶点”最多有___________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e482aff36a9895af3adb70c311397b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec80826e7a5624a82f093422f1e9c3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
9 . 函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c669198fbd7094758d628b088cd5f9.png)
(1)若a=1,求f(x)的单调区间;
(2)记M(a)为f(x)的最小值,当
时,求a的值;
(3)记
,
,当a≤0时,若
且
,求b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c669198fbd7094758d628b088cd5f9.png)
(1)若a=1,求f(x)的单调区间;
(2)记M(a)为f(x)的最小值,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270f6114a317c7b6394716e9bd2e805c.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a3d1c3ad4e09b4a9b7ef14b0010f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf3ccda7e66d76bc660c1c1ae6318ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52854d0ead4737302f4b4706e1f80553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
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10 . 当下的电动汽车越来越普及,充电的问题自然也是越来越受关注.电动汽车充电一般有两种方式,一种是通过随车携带的便携式充电器进行充电,还有一种是通过固定的充电柱进行充电.公共充电桩作为新能源汽车在外实现能源补给的主要工具,是与新能源汽车产业的兴起而伴生的.某商场计划在地下停车库安装公共充电桩,以满足顾客的需求.据市场分析,公共充电柱的历年总利润y(单位:万元)与营运年数x(x是正整数)成二次函数关系,其中前三年总利润为20万元,且投入运营六年后总利润最大达到110万元.
(1)求出y关于x的函数关系式;
(2)求营运的年平均总利润的最大值注:年平均总利润=历年总利润/营运年数).
(1)求出y关于x的函数关系式;
(2)求营运的年平均总利润的最大值注:年平均总利润=历年总利润/营运年数).
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