名校
解题方法
1 . 已知二次函数
的图象如图,有下列5个结论:①
;②
;③当
时,y随x的增大而增大;④
;⑤
(其中
)其中正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6337d68cd5653767e3a1889b8b2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209045c57c031f69d05333c968694a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f89938c2f0a77fdecbc1b7d166a93ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7587c2a5b662b6f0815123273945a66c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
A.1 | B.2 | C.3 | D.4 |
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名校
解题方法
2 . 已知函数
在
上的最大值为4,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2f80962e55a4d6da60361355a8eeb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a12a30935c79ae769818043a496f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知函数
.
(1)判断并证明函数
在
上的单调性;
(2)若存在
,
,使得函数
在区间
上的值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73d72fedaf279a60c0602ab991e57fc.png)
(1)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4416fb953126a852fffbfb614025de87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31e72421c0d65e00edb2acce12abffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155f15aaf6f7846ebf5d5dd03e088838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
解题方法
4 . 函数
,其中
.
(1)当
时,求不等式
的解集;
(2)当
时,f(x)的最小值为0,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb4b18d9a64771883d87596c57cb6b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abc2b2e7d4b48a07796bccaad7d336a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac6a2f7366e0190592444bb60d3cea4.png)
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名校
5 . 对
,
,记
,则函数
的最小值为 __________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1a047dd9d765dc82f2f763caac067e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d428a93b139b018801310ca3fb07ab.png)
您最近一年使用:0次
2024-04-02更新
|
341次组卷
|
2卷引用:陕西省宝鸡市宝鸡中学2023-2024学年高一上学期期中考试数学试题
名校
解题方法
6 . 已知正实数
满足
,且
对任意
恒成立,则实数
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9defa23d2a9b88f4dd10e0ea4bef2189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ebe770f8bb49093e7317526586a5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b64c7136954d12ba4bd3082482e6ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9defa23d2a9b88f4dd10e0ea4bef2189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
7 . 函数
的单调递减区间为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3ea20d9ec0b901dbb76e131c289c72.png)
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名校
解题方法
8 . 已知
是
上的奇函数,且当
时,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
A.![]() |
B.![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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9 . 已知函数
在区间
上有最大值4和最小值1.
(1)求
的值;
(2)若方程
有两个不相等的实数根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe68d9c97f8e8fb173848363160ba79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77d5b194fbd4e6295985b95747312ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
10 . 已知二次函数
的最小值为1,且
.
(1)求
的解析式;
(2)当
时,
恒成立,求实数
的取值范围.
(3)若
在区间
上不单调,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bf2c692b53c12d792878d65bf3bfad.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd448834c4d17d429c177a02fd8dcc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e51a61b0856fd5dfa8b05c8ee2e329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629baf26a3d7eeee639e985e252a03c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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