若函数
在
上存在两个零点,则a的取值范围是 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c22aea3a1562eda04ef0eb639b678800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66202b4b70b33f1b35711eed981f1f1c.png)
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更新时间:2023-05-25 23:16:27
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相似题推荐
单选题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
若
对
恒成立,则实数a的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854c59121fb59dab09a4e62869931688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
解题方法
【推荐2】设
是偶函数
的导函数,当
时,
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58f19afa0753a0bc4fadcd56a7cb888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd0c5c69c229bd51edafd05a0eac8d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e450670fd318a421309f57d6e7e1f294.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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|
较难
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【推荐3】下列不等关系中正确的是( )
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C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较难
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【推荐1】若函数
在区间
上,对
,
为一个三角形的三边长,则称函数
为“三角形函数”.已知函数
在区间
上是“三角形函数”,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b443c138c481dfd65c9f6e003d087b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699d32dbd2b31b313ae7154c9a072775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a932470330e661e3ff4273b51c76e259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ec4b8ed4874328a37cd50343a73aac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
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解题方法
【推荐2】已知实数
满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad5644466d707cb1fa4a72fbe0b545b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
【推荐1】已知函数
,若有且仅有两个整数使得
,则实数m的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9776a31b3656c4099b3f99ad5d5071cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ca971590eccabc17551465bbaf24a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐2】设满足方程
的点
,
的运动轨迹为曲线
和曲线
,若曲线
与曲线
在区间
上存在两个交点,则实数
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/067d1c7429e67451c8ea1b635b891688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d4cd90a9671c1b4589a34d3538ff12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95b41f4204bb56a96f679c81629aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54cb2decd0d50d4031f7e7b7cb34fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a20a987842b48c3daa16c808b231cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a20a987842b48c3daa16c808b231cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54cb2decd0d50d4031f7e7b7cb34fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3321cfeff98d21dfc9f5fb9c468bdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较难
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【推荐3】已知函数
,则函数
,
的零点个数( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d1f6f459292de1002f863203ce91a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76188948a93ee6e401e68c9559ebb61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84612b6741c8062e11f2f38c1445335a.png)
A.5或6个 | B.3或9个 | C.9或10个 | D.5或9个 |
您最近一年使用:0次
单选题
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较难
(0.4)
【推荐1】已知过点
作曲线
的切线有且仅有两条,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c240561788bc63f41a6703219fb66d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59f66427f773a2942fd37fc92ec8817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较难
(0.4)
【推荐2】已知
,
,
,
均为
的解,且
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78c657fd439d54383beb9c484f2b594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
A.![]() | B.![]() |
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您最近一年使用:0次