已知函数
.
(1)当
时,证明:
;
(2)若函数
在
上只有一个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360cf074f25741cf9f57428d79b1b98c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3641891c2d679702c89f19e00b31ca4c.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
22-23高二下·广东佛山·期末 查看更多[3]
更新时间:2023-07-08 11:34:35
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相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】设常数
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73967d764b87c103687176ef32c1ff4.png)
(1)若
,求
的单调区间
(2)若
为奇函数,且关于
的不等式
对所有
恒成立,求实数
的取值范围
(3)当
时,若方程
有三个不相等的实数根
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73967d764b87c103687176ef32c1ff4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da4237d0c76d38d7e415b2da8cac032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8aaa7614c03e1ced72f3db4686909c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
【推荐2】设函数
,
,(其中
,
)且
是函数
的极值点.
(1)求
;
(2)函数
恰有两个零点;
①求
的取值范围;
②设
为
的极值点,
为
的零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcea74d330997ee9c92a223c0335851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e33fdfc14e09b9adc68a72d92b96c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e6015b9f78f19c75b5e243592c23f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64df36fd0b37b72d36fe21e10f5d67f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e702432261edc0e58dc4cd8f9cccf2b.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)讨论
的单调性:
(2)若
在定义域上有两个极值点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dac092855edaaa680cd1a8954ce69a6.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be07753eab86fa9c439a65db51c9a9e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24dcbef7c3ba13ba91cca5b6268ebf8.png)
您最近一年使用:0次
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(0.4)
名校
解题方法
【推荐2】已知函数
.
(1)若
,讨论
的导函数
的零点个数;
(2)若
有两个不同的零点
,且满足
,求证:
.(参考数据
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4976b48e81cce2ab34cb3a029bb9afb6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c5188962ddff1aa8150245068e6caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40453902bac11bb20c45456acee377de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3fe8ad699c43bc6a456367aa2a8d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e89e8921bb17bb0bcd222bc71f5397b.png)
您最近一年使用:0次
解答题-问答题
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较难
(0.4)
【推荐1】已知函数
.
(1)当
时,求函数
的零点个数;
(2)求
在
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af7d2b1c7475c65080931f011aeef8c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9998f27aca8e31ba479b96858b509c85.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96977a5415357a1b31b00b91b511f884.png)
您最近一年使用:0次
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较难
(0.4)
【推荐2】已知函数
;
(1)求
在点
处的切线方程;
(2)设
仅有一个零点,求实数
的值;
(3)试探究函数
是否存在单调递减区间?若有,设其单调区间为
,试求
的取值范围?若没有,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2eb8ff0fa39cf7ff0a4df1f95aad43b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c3a3d0d2dea1291307500db8cd0047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)试探究函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7da383dca3a4166f91cf5526b20892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065147cae06da5c8cf20a9c9a6d7029f.png)
您最近一年使用:0次
解答题-证明题
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较难
(0.4)
【推荐3】已知函数
,
,
.
(1)当
时,求
的单调区间;
(2)求证:
有且仅有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6c3542406dade3d256fd9338502bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2b5ee1eabb64358a3d9db2349b6fce.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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