解题方法
1 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d722175107e60b4152e5f19395b00760.png)
(1)若
,且
,求
的值;
(2)画出函数
在区间
上的图象(在答题纸上完成列表并作图).
1.列表
2.描点,连线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d722175107e60b4152e5f19395b00760.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a5bac6bba5b43f7cfb34bd309d28c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58f78cb224a765a658f29ac0eba5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
1.列表
![](https://img.xkw.com/dksih/QBM/2018/4/19/1927377186496512/1930513449631744/STEM/360ff4db79ce42488f545fd56866aa21.png?resizew=288)
您最近一年使用:0次
2018-04-23更新
|
605次组卷
|
2卷引用:山西大学附属中学2017-2018学年高一4月月考数学试题
2 . 已知函数
.
(1)某同学打算用“五点法”画出函数
再某一周期内的图象,列表如下:
请填写上表的空格处,并写出函数
的解析式;
(2)若函数
,将
图象上各点的纵坐标不变、横坐标扩大到原来的2倍,再向右平移
个单位,得到函数
的图象,若
在
上恰有奇数个零点,求实数a与零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e613ec74a2f330b57a235439510dc5.png)
(1)某同学打算用“五点法”画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
x | ![]() | ![]() | ![]() | ||
![]() | 0 | ![]() | ![]() | ![]() | ![]() |
![]() | 0 | 1 | 0 | ![]() | 0 |
![]() | 0 | ![]() | 0 | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bfa338e78c528663f0602c60f3f594d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdb2704ea6bc44b5a75fb3c8a100353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aab44d48c65864b1f46ea3647437bbe.png)
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3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66931c1273b2db867d41149e1fb3a8b9.png)
(1)填写下表,并用“五点法”画出
在
上的图象;
(2)将
的图象向下平移1个单位,横坐标扩大为原来的4倍,再向左平移
个单位后,得到
的图象,求
的对称中心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66931c1273b2db867d41149e1fb3a8b9.png)
(1)填写下表,并用“五点法”画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4b61d912f99e5583e7e17cf8fef558.png)
x | 0 | |||||
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/952eb447-8e3d-4ced-a705-cfb89794e4c7.png?resizew=207)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
您最近一年使用:0次
名校
4 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e658113eadee1b45111b2a927c24e2f.png)
(1)某同学用“五点法”画出函数
在某一周期内的图像,列表如下:
请填写表中的空格,并写出函数
的表达式
(2)若
,将函数
的图像向右平移
个单位长度,再向下平移10个单位长度后得到函数
的图像,求函数
的零点所组成的集合;
(3)对于(2)中的函数
,证明:存在无穷多个互不相等的正整数
,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e658113eadee1b45111b2a927c24e2f.png)
(1)某同学用“五点法”画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![]() | ![]() | ![]() | ![]() | ||
![]() | 0 | ![]() | ![]() | ![]() | ![]() |
![]() | 0 | ![]() | 0 | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3b825b865672c849f8bc7d45e6244e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(3)对于(2)中的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bbc2539e1b3815242c95118e9b0784.png)
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5 . 已知函数
.
在区间
上的图象,他列出表格,并填入了部分数据,请你帮他把表格填写完整,并在坐标系中画出图象;
(2)已知函数
.
①若函数
的最小正周期为
,求
的单调递增区间;
②若函数
在
上无零点,求
的取值范围(直接写出结论).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb53e14aa7225debe814dc53dfa5cb79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261f998fc8fcf7da2931205de40cd6d4.png)
![]() | ![]() | ![]() | ![]() | ![]() | |
![]() | 0 | ![]() | ![]() | ![]() | |
![]() | 0 | 2 | 0 | 0 |
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a26e8f4212b5aa220abb86fc00902ef.png)
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ceecc74c6f1f2bb03d025faa347bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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解题方法
6 . 已知函数
.
在
上的图象;
(2)写出
的解集;
(3)把
图象向右平移
个单位长度,再将图象上所有点横坐标缩短为原来
(纵坐标不变),得到
的图象,求
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66931c1273b2db867d41149e1fb3a8b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c195698ac387fe53b3b1e0248a1fcc92.png)
![]() | ![]() | ![]() | ||||
![]() | 0 | ![]() | ||||
![]() |
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(3)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66931c1273b2db867d41149e1fb3a8b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
您最近一年使用:0次
7 . 已知函数
.
(1)填写下表,并画出
在
上的图象;
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32f25c3e8b58eed9559d77527589af8.png)
(1)填写下表,并画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4b61d912f99e5583e7e17cf8fef558.png)
0 | ||||||
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
您最近一年使用:0次
8 . 已知函数
.
(1)填写下表,用“五点法”画出函数
在一个周期上的图象;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816b60d5034f6899b30aeab1e51ecdfe.png)
(1)填写下表,用“五点法”画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816b60d5034f6899b30aeab1e51ecdfe.png)
![]() | ![]() | ![]() | ![]() | ||
![]() | ![]() | ![]() | ![]() | ||
![]() | 0 | 2 | 0 | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fcc71bd2da1877d85269abd79496504.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数
,
.
(1)在用“五点法”作函数
在区间
上的图象时,列表如下:
将上述表格填写完整,并在坐标系中画出函数的图象;
在区间
上的最值以及对应的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68cf294952dfae06a1263c6cadc607bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)在用“五点法”作函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
![]() | ![]() | ![]() | ||||
![]() | 0 | ![]() | ||||
![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7514152dc8e0412f21da329682abeb13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
10 . 已知函数
.
在
上的图象;
(2)将
的图象横坐标扩大为原来的2倍,再向左平移
个单位后,得到
的图象,求
的对称中心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54224b6cf4740eb1e482055744689615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
x | 0 | |||||
1 | 0 |
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次