名校
解题方法
1 . 已知函数
.
(1)当
时,解不等式
;
(2)若
(1)
,
(2)
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5975d8d6af2c803efd0bc27f07c3493.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d42ee035c3e62a00540fcd65320d34.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276daae13c0ae96a1e4b685adc29dd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276daae13c0ae96a1e4b685adc29dd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8992db0a8f8762fb0ccf86bed3351a20.png)
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2020-09-21更新
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217次组卷
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3卷引用:吉林省梅河口市第五中学2020届高三第七次模拟考试数学(理)试题