已知函数
.
(1)若函数
在
上是增函数,求正实数
的取值范围;
(2)当
时,求函数
在
上的最大值和最小值;
(3)当
时,对任意的正整数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac15cac5b3af917dfc947318d968121.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5e5ba3a62f61ff22319d3decfdc48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/742254b2bd8972eb9d52341ed2ef98f7.png)
23-24高二下·四川绵阳·期中 查看更多[2]
更新时间:2024-06-07 23:09:04
|
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知命题
:函数
对任意
均有
; 命题
在区间
上恒成立.
(1)如果命题
为真命题,求实数
的值或取值范围;
(2)命题“
”为真命题,“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55c889ff91290be151d045abca9c52d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a57d6d7b74ae630e6ce3b43afe6060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2eaef324b5d1b148c03cd82f70ab284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
(1)如果命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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适中
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名校
解题方法
【推荐2】设函数
.
(1)当
时,求
的极值;
(2)若
在
上为减函数,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02bb65b7db282218b99bfc922da5b36.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.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/7a9e66b73038b6279d204a47a78902ad.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,且
.
(1)求
的值;
(2)求函数
在区间
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226f8878ee661865182002b406f69a32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedde86fd5b5e93c14ffd9190fc7d7a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】小张要制作一个如图所示的正三棱柱形实木块,假设该三棱柱形实木块的所有棱长之和为
.
(1)设该三棱柱形实木块的底面边长为
,体积为
,求
关于
的函数表达式;
(2)求该三棱柱形实木块体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9871f2a312aaf3a19b40e4fb1a7693b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/6/7cf1d04c-c718-45bd-8f5b-ba7b2804ac78.png?resizew=60)
(1)设该三棱柱形实木块的底面边长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3160fce05b551569b8c7b5de6dd8b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c7fe9ae1b771f628fc991dbbc74735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求该三棱柱形实木块体积的最大值.
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】设函数
,曲线
在点
处的切线方程为
.
(1)求
的值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a460de4b64a5154fca70b4e1ec8ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e154ef2a77f2ac3dcc1ff6df5ab012.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91100d6b3b151cc6ddfe60f106ec877.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】 已知函数
.
(1)当
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;
(2)当
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时,不等式
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d809ef9f6ff948309cdbc073c00864.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fde71807463dbdfd8fce1655a5a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d088f25832ac4868f47f16bfc1a70d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b6340fd734a5e604951fc1bea5c068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e946a674113fce6e7cddfe47bdff92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb298a62e6a6841ae3b3c4bf87daa66.png)
您最近一年使用:0次