已知
,
.
(1)当
时,求不等式
的解集;
(2)若
,且当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b0f9a2dc7c18c6f04f97512320be07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2544ed42ad77c8f98269717c623dda.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc1cd2baabbf8afea25478e1258237.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55feb3cbcaf37c63b6ce1c5abece8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/768815509a62829482140633a1fe4218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab42740d8f095b5f7825d14c4c312096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2018-09-25 10:35:42
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【推荐1】设函数
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(1)若
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(2)如果任意
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(1)若
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解答题-证明题
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适中
(0.65)
【推荐2】已知函数
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(1)求不等式
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(2)若正数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72157c1977b28de95ae5d0f7f7e09f55.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86937bc204e2dc96e705e32eb4563e86.png)
(2)若正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f17565c38e8c23ade1f5dcfcd377c89.png)
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名校
【推荐1】选修4-5:不等式选讲
已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29c670ad4388998d95c5e1bac01a9cd.png)
(1)当
时,解不等式
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(2)不等式
在
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已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29c670ad4388998d95c5e1bac01a9cd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
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(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dbd58b21a94cf93f4623c07452b102.png)
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解答题-问答题
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适中
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a19867a5599a7796cde428507e5324.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0abe4960954bb3144b7e86d4233e747.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1802719468fcb8eddc5fe50d78b176f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次