名校
解题方法
1 . 已知函数
为定义在
上的偶函数,且当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2519cb5066023438c6b2f23f197f366c.png)
在
上的图象;
②若方程
恰有6个不相等的实根,求实数
的取值范围;
(2)对于两个定义域相同的函数
和
,若
,则称函数
是由“基函数
和
”生成的.已知
是由“基函数
和
”生成的,若
,使得
成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2519cb5066023438c6b2f23f197f366c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f216eab905e2470a08d95f56b465351d.png)
②若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对于两个定义域相同的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1803511584bb172d9445a4c49ab6fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49794721f5504dd828acf49be37ff42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcabe2fbcaf9a95bc892d4ee048bcee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1803511584bb172d9445a4c49ab6fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49794721f5504dd828acf49be37ff42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd4c1073c99cd02242ebcf0f4b9939b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41a45b6b81807f3e168f34699df1399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab8365588fd69302507063e903215d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d2b557b1aeae935a866ef3f35de4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
2 . (1)利用函数f(x)=2x的图象,作出下列各函数的图象.
① y=f(-x); ② y=f(|x|); ③ y=f(x)-1;④ y=|f(x)-1|;⑤ y=-f(x);⑥ y=f(x-1).
(2)作出下列函数的图象.
① y=()|x|;
② y=|log2(x+1)|;
③ y=.
您最近一年使用:0次
名校
解题方法
3 . 已知函数
.
(1)在给出的坐标系中作出
的图象;
(2)根据图象,写出
的单调区间;
(3)试讨论方程
的根的情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773e54771c93e3874dd29755b1b3a99f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/43282894-16f2-4a59-afac-2d32151aca06.png?resizew=205)
(1)在给出的坐标系中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
(2)根据图象,写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(3)试讨论方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10259beda34cefa666487471715539fd.png)
您最近一年使用:0次
解题方法
4 . 已知函数
(
且
)的图象经过点
.
(1)求实数
的值;
(2)作出此函数的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67321025c656d8b9f38a0d3ececef50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7362fa526a84b0ce2f5a2021dbc44399.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)作出此函数的图象.
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2024·全国·模拟预测
解题方法
5 . 已知函数
.
(1)画出
的图象;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b06cd4e4730f04a5de97370bafbe6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/a5fba46c-5fdd-4519-8b23-864d8f7fec7a.png?resizew=110)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975f392f7f9569d901c3f59c4e986d9a.png)
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解题方法
6 . 已知函数
的图象关于原点对称.
(1)求实数
,
,
的值;
(2)作出
的大致图象;
(3)结合图象求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f940da70592960081e37c2069045f58a.png)
(1)求实数
![](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)
(2)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)结合图象求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ec4429beace8d9a1dc214126fc2ce8.png)
您最近一年使用:0次
名校
7 . 已知函数
是定义在
上的偶函数,当
时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/bc31d46c-022e-4d95-aaee-47d3a0c90d1c.png?resizew=216)
(1)求函数
在
上的解析式,并在坐标系内作出函数
的图象;
(2)若方程
恰有四个不同实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5212ce4da8630abea17b66cfb964859.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/bc31d46c-022e-4d95-aaee-47d3a0c90d1c.png?resizew=216)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4639369fb0b0c02857ec42e069bb7d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
8 . 已知
为定义在R上的偶函数,当
时,
.
(1)用分段函数表示
时
的解析式,作出
在定义域内的图象,并指出
的值域;
(2)讨论直线
与
图象的交点个数(不需证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34057d0e878d2252eaff27d6b28db427.png)
(1)用分段函数表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/a9fd9b93-ec1a-4dbe-a9ad-eeaadc23f2f7.png?resizew=187)
(2)讨论直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30be9baff9da707f2b7cd008a6e686f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)若
,作出
的函数图象并求
的单调递减区间;
(2)讨论关于
的方程
的解的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a9fc7b37f53c4e74c0a9dfb9b71d61.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
您最近一年使用:0次
名校
10 . 已知函数
是定义域为
的奇函数,且
时,
.
(1)求
的解析式;
(2)在给定坐标系中画出函数
的图象,并讨论方程
(
为常数)根的个数(写出结果即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf51d9719b5dba6b64411e961002d3a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在给定坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb101c5df08aa35ae24a6416840b199b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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