已知函数
,且
.
(1)求a的值;
(2)当
时,
恒成立,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79f9631420660bf176b1fb4e111885b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172dd7f1d734264058036e70642d56ef.png)
(1)求a的值;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b2379f8d97dac6f7ddf3f262968768.png)
23-24高三上·河北邢台·阶段练习 查看更多[5]
河北省邢台市五岳联盟2024届高三上学期第四次月考数学试题陕西省汉中市多校2023-2024学年高三上学期第四次联考文科数学试题陕西省汉中市多校2023-2024学年高三上学期第四次联考理科数学试题陕西省西安市长安区2024届高三10月联考数学(文)试题(已下线)期末测试卷02(测试范围:第1-8章+集合+不等式+函数)-备战2023-2024学年高二数学下学期期末真题分类汇编(沪教版2020选择性必修,上海专用)
更新时间:2023-10-27 21:09:23
|
相似题推荐
解答题-计算题
|
较易
(0.85)
【推荐2】解决下列问题:
(1).求值:
;
(2).若
,
,求
的值.
(1).求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4f3e869c7e72449a4d87cdd90dc2d8.png)
(2).若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0133e558923166de6326733f43133e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28449461d18047d86f0b09c2f50dbb3.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def99e79bbc5e9857889fb8a46b04dd5.png)
(1)若对于一切实数
,
恒成立,求实数
的取值范围;
(2)若对于任意
,
恒成立,求实数
的取值范围;
(3)若对于任意
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def99e79bbc5e9857889fb8a46b04dd5.png)
(1)若对于一切实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998485ffeb46a0412ff1a0f814429257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04ca09b6ce7a57078afb1c5162d9e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab516094f03e6f6f194b783b8a2ebe59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8dbf77edc5f1e8e5946df64cf62d759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】已知关于x的不等式
.
(1)当
时,解关于x的不等式;
(2)当
时,不等式
恒成立,求x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e2fda5a2615a5365973a38f5366ca1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c992d56c555eba49680a55c514212e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e2fda5a2615a5365973a38f5366ca1.png)
您最近一年使用:0次