已知函数
(
为常数).
(1)当
时,求不等式
的解集;
(2)当
时,
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47f35ba6e37e9b8630e91921c0efca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665dc334a37e61c356b636604eb0f8c3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e23f593cd4b055a3f6b0705cd70a99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc9b782203205d2a0ad3187b97c885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
更新时间:2022-06-30 12:06:58
|
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)
,解不等式
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dc35ef330a91566674b6ea35f8f8ac.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
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解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐2】设函数
.
(1)当
,求不等式
的解集:
(2)已知
,
,函数
的最小值为1,求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1f328fcd670bfd11fa568abdf7f6c4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3b4ca5d681bb53cadabf89151b4ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a8a9f4f0d6590de86becb733bd1b6b.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf81894823ba1b3737b49eae0a2fb09.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,且
的解集为 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a484e16f70f4bce2b8418d37c3e100a7.png)
(1)求
的值;
(2)设函数
,若存在
使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a4a2c36860ca8cd3ad4b77391f9595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f359824c075fa0bcdd51311d789ec3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a484e16f70f4bce2b8418d37c3e100a7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd49d1d6f2fdab11e26b1606275b5e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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适中
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解题方法
【推荐2】已知不等式
的解集是A,不等式
的解集是B.
(1)当
时,求
;
(2)如果
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdeab70612dd59acc00620c59931aa91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6906b1ec8968b95173940ee40f6ffdd9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
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