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)
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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
解题方法
2 . 如图,自行车前后轮半径均为rcm(忽略轮胎厚度),固定心轴间距
为3rcm,后轮气门芯P的起始位置在后轮的最上方,前轮气门芯Q的起始位置在前轮的最右方.当自行车在水平地面上往前作匀速直线运动的过程中,前后轮转动的角速度均为
,经过t(单位:s)后P,Q两点间距离为f(t).
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899097242673152/2909150147477504/STEM/be339d9f-a88d-48b1-952c-1c7476e72aa3.png?resizew=230)
(1)求f(t)的解析式:
(2)求f(t)的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bfa7196c89d0828ba06ca3c18161a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e48d11be56a4bdf2aa8c318ba9fe3e.png)
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899097242673152/2909150147477504/STEM/be339d9f-a88d-48b1-952c-1c7476e72aa3.png?resizew=230)
(1)求f(t)的解析式:
(2)求f(t)的最大值和最小值.
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名校
解题方法
3 . 如图,
的顶点A,B分别在x轴的非负半轴,y轴的非负半轴上,
,
.
![](https://img.xkw.com/dksih/QBM/2021/12/27/2881652916666368/2885920726016000/STEM/544701e95ceb43249c79e5d84cee0538.png?resizew=119)
(1)求点C到y轴的距离的最大值;
(2)设点M为斜边BC的中点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://img.xkw.com/dksih/QBM/2021/12/27/2881652916666368/2885920726016000/STEM/544701e95ceb43249c79e5d84cee0538.png?resizew=119)
(1)求点C到y轴的距离的最大值;
(2)设点M为斜边BC的中点,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8417983dfa06eb2858c3aa576ec1b5.png)
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4 . 设A是单位圆与x轴正半轴的交点,点B在单位圆上,且其横坐标为
,直角坐标系原点为O.
(1)设α是以OA为始边,OB为终边的角,求
的值;
(2)若P在单位圆上,且位于第一象限,点
在第二象限,求
的面积S的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6ddf31b7d9225a4239883af72d153b.png)
(1)设α是以OA为始边,OB为终边的角,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)若P在单位圆上,且位于第一象限,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
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