已知函数
.
(1)当
时,解不等式
;
(2)若
的值域为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37ccb8737e2f6f039ce786818d8b5ed.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32dbf3d6fca7f835257b0928a52e1d1b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c880a292e77ec85d531c1b37e6feffe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4e89ca066f007b4ce96abf8577eb0e.png)
19-20高三下·山西太原·阶段练习 查看更多[7]
山西省太原市第五中学2020届高三下学期6月月考数学(理)试题(已下线)专题23 不等式选讲-2020年高考数学(理)母题题源解密(全国Ⅱ专版)(已下线)专题23 不等式选讲-2020年高考数学(文)母题题源解密(全国Ⅱ专版)江西省南昌市第十中学2021届高三年级上学期第二次月考理科数学试题江西省南昌市第十中学2021届高三上学期第二次月考数学(文)试题广西壮族自治区防城港市2023届高三下学期4月月考数学(理)试题四川省绵阳市绵阳南山中学实验学校2022-2023学年高三下学期4月月考数学理科试题
更新时间:2020-08-19 09:48:25
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)求
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适中
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【推荐2】已知函数
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(1)当
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(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f835d10ed62ec80fa7c635b88bf0c5cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccee2a932505404134b5c9cc985e6619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1790298e90e3a51b7da03b0edca5298.png)
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适中
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(2)记
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适中
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【推荐2】已知函数
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(Ⅱ)若正实数a,b满足
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适中
(0.65)
名校
【推荐1】已知函数
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(1)解不等式
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48de42fc90f6c80a503d8bea9d4412ce.png)
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