解题方法
1 . 设函数
,
,存在实数
,使得
成立.
(1)求不等式
的解集:
(2)若
,
,且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac7d125f3cc367985e688e66d77b2b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0c73a1455fc61a2239cb62de1f3c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d3feee85e869ea9ab561ff63d46a2.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3c756a52c9185ae6d02d9b9312f29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a671406a5442a3088a4ee1d064114a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9075b6224ef0a5ed649a380741b4d6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a227c7c793a98f61b1395d7eebaeefba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c16451d5b6925506d3920461fb59f9.png)
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2020-02-19更新
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305次组卷
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3卷引用:2020届内蒙古赤峰市高三上学期期末试卷文科数学