函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df9feb3453c66cfea9ca4f4d96cbd2f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
18-19高一上·重庆沙坪坝·期末 查看更多[2]
更新时间:2020-02-24 22:28:13
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【推荐1】函数
的值域是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c2a070fe89b803507dab696fa4641e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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适中
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解题方法
【推荐2】函数
的定义域为
,其图像上任一点
满足
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662046df9f87264672dafd60d92e057b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
A.函数![]() |
B.函数![]() |
C.函数![]() ![]() ![]() |
D.若函数值域为![]() ![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
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【推荐1】已知椭圆
:
与双曲线
:
(
,
)有共同的焦点
,
,且在第一象限的交点为
,满足
(其中
为原点).设
,
的离心率分别为
,
,当
取得最小值时,
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679fff3c550021fdc85c2683d0af6405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ddbab3d60ff4be28e09bd34b9fbd42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7db1f92b9785809c0c39353e890c718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】已知实数x,y满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209798b30e01174baa0f914369aa2c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745c100afb56c39c7706fc59aacac0ba.png)
A.1 | B.![]() | C.![]() | D.2 |
您最近一年使用:0次