已知函数
.
(I)当
时,判断
的奇偶性,并证明你的结论;
(II)当
时,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0095b52b29bdcf7a79637c07abbf1441.png)
(I)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(II)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
18-19高一上·北京·期中 查看更多[2]
更新时间:2018-12-26 15:09:58
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适中
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名校
【推荐2】若函数f(x)满足f(logax)=
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(1)求函数f(x)的解析式,并判断其奇偶性和单调性;
(2)当x∈(-∞,2)时,f(x)-4的值恒为负数,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ef000895b941bf56731496c395a3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf35027e76f8ea593f82023973d4aba3.png)
(1)求函数f(x)的解析式,并判断其奇偶性和单调性;
(2)当x∈(-∞,2)时,f(x)-4的值恒为负数,求a的取值范围.
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1】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad53cbfade2868be2058c9fed65099b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3f7f762131c77a3c8440b4a3bc1d12.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42aab1a78c5bd5da10142b62aae73d1d.png)
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解答题-问答题
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适中
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名校
【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aadf5c33b7a5517e3e0a8906e8a93d7.png)
(1)求函数f(x)的值域;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff767ae3ca8e43e987918c246b44afe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4827ff50cc5bce242768386e92b6abce.png)
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