1 . 已知二次函数
满足
,且
.
(1)求
的解析式;
(2)当
时,不等式
恒成立,求实数
的取值范围;
(3)设
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f47d825054761a00f32b4878bdb94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7a07624cc738da030ed9f2ca79e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02468dce9deb4501e7454f442c084c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9503757740a0e7254e3fbdd2d8e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82a1224e47f31ecdfffd328d5a3ab6d.png)
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2022-01-10更新
|
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3卷引用:福建省莆田砺志学校2021-2022学年高一上学期线上教学学情摸底考试数学试题
名校
2 . 已知函数
对一切实数
,都有
成立,且
,
.
(1)求
的值;
(2)求
的解析式;
(3)若关于x的方程
有三个不同的实数解,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58dc7f34867efb468f6d3506b7602ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5275143b1335bf2ec2e575cc257f79fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2648d5b951809271006fd1db61062c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6181ea7339144345677568a7fd485f84.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4134547cfa372bb11da533ea1b9a0b51.png)
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5卷引用:福建省莆田第五中学2023-2024学年高一上学期月考三数学试卷
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解题方法
3 . 已知函数
,且
.
(1)求
的解析式;
(2)已知
的定义域为
.
(ⅰ)求
的定义域;
(ⅱ)若方程
有唯一实根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b387fd7ffd8b00ba7ffc72438e9abec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1215d01764a3b041d2f4497806da95d.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d3a7a3a47355fe9b29a58f1574079f.png)
(ⅱ)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e255cb0217bed61e6ed29d5f139365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2020-02-14更新
|
531次组卷
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3卷引用:福建省莆田市第四中学2023-2024学年高一上学期第二次月考数学试题