已知函数
.
(1)证明:当
时,
;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb89f876ec063673730aa225074b273.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576a9bd59c45f48818ef16d33f71bb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebfdecc7f8089cb23c20d0a93ee1b601.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09881de0dc186bbcd1e60eb00159ee97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f5ea1a1281631da9f5c48afe23377.png)
2024高三·全国·专题练习 查看更多[1]
(已下线)专题03 利用导数证明不等式(四大题型)
更新时间:2024-05-23 09:30:28
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解答题-问答题
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适中
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【推荐1】已知函数
在
处取得极值1.
(1)求
、b的值;
(2)求
在
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a477302523545d6bb572078c9a69f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd59a743edef1d9774e80aa2ebce5f5.png)
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适中
(0.65)
解题方法
【推荐2】设小张每次投篮的命中率为
,每次投篮的结果相互独立.当
时,小张投篮5次恰好命中2次的概率
取得最大值.
(1)求
;
(2)若
,记他投篮8次恰好命中3次的概率为
,他投篮10次恰好命中4次的概率为
,试问
,
哪个更大?说明你的理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c8578f06897aa6fb84aa95c797d3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098e663b79254b0a2e0e00f92bd14b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1f109f79547d6ae0d94339e689e8f7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098e663b79254b0a2e0e00f92bd14b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
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【推荐3】已知
是函数
的极值点,则:
(1)求实数
的值.
(2)求函数
在区间
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab5283625a5d9a025c0124fbf68f0d4.png)
(1)求实数
![](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/2fab11f38ab8593932082ec4d9c8c91f.png)
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解答题-证明题
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解题方法
【推荐1】已知函数
,其中
,曲线
在
处的切线
与坐标轴围成的面积为
.
(1)求实数
的值;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e577bb4766762598258778e390b30b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ec226fe3bfcbba33151cfff9a2603d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868e738c6de3d68c0eb90984874a8640.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d07f9b89b24792b5e5cc639b399ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b7291b07859babc65e950cf6913ee6.png)
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【推荐2】已知函数
,
.
(Ⅰ)讨论
单调区间;
(Ⅱ)若直线
是函数
图象的切线,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a27aea66daa96c2d48a0f72c9b58d9d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a62b238813bdfc32a58e765ad92d95c.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
(Ⅱ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a62b238813bdfc32a58e765ad92d95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a27aea66daa96c2d48a0f72c9b58d9d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
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【推荐1】已知函数
.
(1)求
的单调区间;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d01002d22fe39e8f8f20597f1a92e2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2ae43135f5d0a94b069d28d95e8b42.png)
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解题方法
【推荐2】已知函数
在
上不具有单调性.
(1)求实数
的取值范围;
(2)若
是
的导函数,设
,试证明:对任意两个不相等正数
,不等式
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4b129481bd8a2fa66f61c3cbb7125a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20251bc82067179f013288b5c338856.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08901950607f256e24e0ab9bf74b1c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff60eab72de85437e12806474281612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05d8e941031251ba80b00febda3de83.png)
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【推荐1】已知函数
,
(其中
为自然对数的底数).
(1)判断函数
的零点的个数,并说明理由;
(2)当
时,
恒成立,求整数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464ba64209ba4a5123bf6d20caab4b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd0e2f50c8673ef63a3b47ba1b44eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89c2336e46cbbe2b978d7d8fcd340be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9e6dfb570b04234231eb504ced925e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】已知
(其中
).
(1)求函数
在
上的最小值;
(2)对一切
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58198f49b6f6f8ba99627ea4b31a4df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3696c14fd7401ca2fd97865db4d9a2f.png)
(2)对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f80dfdbfb495bdf766101ea83d4ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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