解题方法
1 . 已知函数
,
,
为参数.
(1)
为何值时,函数
恰有两个零点;
(2)设函数
的最大值与最小值分别为
与
,求函数
的表达式及最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf2cc00f2a5be372b62a217786e9df1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedd50c3697d7653e26bc844f930dad9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd046435916341a04edc3e73344ebc8a.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608573102f4d2fe1eb1042dd6cbf3ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8293db612d22d239d1bd69bc2c64ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ff71b5843b8417836177fd55d74f9f.png)
您最近一年使用:0次
名校
解题方法
2 . 设
,其中
.
(1)当
时,分别求
及
的值域;
(2)记
,
,
,
,
,
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9319e645a3762d43a0bf8b2c0f222c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e56e3224d58e0cfd256493f3fc63df.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea823be0c91739b8b3e90c24bf8f2fe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2d087776bf60324ffedabaf0dda4e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1962402622fed8015634d5029df090c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/873376b6e7310457b9401051793038af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2d087776bf60324ffedabaf0dda4e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1962402622fed8015634d5029df090c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2020-10-12更新
|
279次组卷
|
5卷引用:湖北省武汉市武昌实验中学2019-2020学年高一上学期9月月考数学试题
湖北省武汉市武昌实验中学2019-2020学年高一上学期9月月考数学试题【市级联考】浙江省宁波市2018-2019学年高一第一学期期末考试数学试题安徽省安庆市桐城中学2019-2020学年高一上学期第一次月考数学试题(已下线)【新东方】浙江省2019-2020学年高一上学期期中数学试题【JWGY】浙江省金华市外国语学校2021-2022学年高一平行班上学期期中数学试题
解题方法
3 . 已知函数
.
(1)当
时,
①若函数
满足
求
的表达式,直接写出
的递增区间;
②若存在实数
使得
成立,求实数
的取值范围;
(2)若函数
满足
当
时,恒有
,试确定a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0693bdda6262161628357314330501.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54a84d9f8a6823180479a3fdb6d4788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
②若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3993391fe16e7315c4d92af28c03fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8a5d53a13ccc4cbbbc811863363793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d65cc1b39c916ec353c19dd9f4a71c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c58e6839b75d38c53abcfa08273adb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87bee56ee7542354c65007d2ad20fea9.png)
您最近一年使用:0次
2020-12-25更新
|
281次组卷
|
2卷引用:湖北省恩施州恩施市第三高级中学2022-2023学年高一上学期期末数学试题
解题方法
4 . 设
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9338c01c14316161ad547d0b9abdda4.png)
(1)若
为偶函数,求实数
的值;
(2)记
的最小值为
,求
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da989240786ef7c3e2d903f30caf59e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9338c01c14316161ad547d0b9abdda4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
您最近一年使用:0次