已知
,
,其中
、
均为实数.
(Ⅰ)若
,求
的取值范围;
(Ⅱ)设
,若
,在区间
上总存在
、
使得
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4454d07a0a42a1fcbd52c17c255b8ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b1a5684da14415a9e5ebe768a72c66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa940ae63482752270883bf3846d709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a6208df4a144e9d8e9b96064c6b79e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a34916bed99ec3aba7382a635364c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c7eb49a823f757461cd5260757b088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924410accb4e494bbb7a36ea33f0c2bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276f5d625b7d96aa0dac246fc3a7f0c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-06-15 19:11:34
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bf7d03f075e1c0a67d02a56ddd6611.png)
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