已知函数
.
(1)求
在点
处的切线方程;
(2)判断函数
在区间
上的单调性,并说明理由;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4990c2604dc3430bf0010b1cad02fd5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec7a126e69669d0374f88122823818d.png)
更新时间:2022-11-21 18:58:31
|
相似题推荐
解答题-问答题
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较难
(0.4)
解题方法
【推荐1】已知函数
,
.
(1)当
时,求函数
在点
处的切线方程;
(2)当
时,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317dcaf1cbb50b1fe6984921dcd4e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9824af71c9da5db5a00ec06063024.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
【推荐2】已知函数
,
.
(1)当
时,求
在
处的切线方程;
(2)设函数
,若
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0f4e81bdfe50d56c87c907df1abe4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cd909063df21cc2a19220b3d320c35.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c57dd356779331363da2d18226230d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04bd9759565e4cd93839a2ce2b31b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
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解答题-证明题
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【推荐3】设函数
(
为自然对数的底数,
).
(1)当
时,求函数
的图象在
处的切线方程;
(2)若函数
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(3)若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d327f3c96cc14952bb3b5aa8354965ac.png)
有且仅有
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,且
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2307a0b4a1258a4e62a31ed86f4db3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)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/9b384412acba251d87902ab928902f16.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d327f3c96cc14952bb3b5aa8354965ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fcdccdff3319c45eee064c89c18810.png)
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【推荐1】已知函数
(其中e为自然对数的底数).
(1)若
,证明:当
时,
恒成立;
(2)已知函数
在R上有三个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5293de6a5863b115555f099123482cfa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac5b738cd5ea12f6d93e9c5fc6bcd5.png)
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【推荐2】已知
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,
是关于
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(2)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64a2edbf22b78742405324e9997a863.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77a43469772de1da3544cb014626822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee95d0b88e6ee2547424d8768a740daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea12cadc1586d54895a10d4670053caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9faf4ad81e4fa704c6fd7f3cf1ada5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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【推荐3】已知函数
.
(1)若
,证明:
;
(2)若
对任意的
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03c2ee1814a7859834488ed95ef333f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1948503d09a7e1f158b63f0c1bc5b4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
您最近一年使用:0次
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(0.4)
名校
解题方法
【推荐1】设函数
.
(1)若方程
存在唯一的实数根,求实数m的取值范围;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bd4083b8a62478b37964f3071d99a4.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2c4c7fc6d8815d1fd9814a5e719d40.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6bc621c9b9a63a1e812947ea4148cd7.png)
您最近一年使用:0次
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(0.4)
解题方法
【推荐2】已知函数
.
(1)若函数
的图象与
轴有且只有一个公共点,求实数
的取值范围;
(2)若
对任意
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21a90c9c8a49f5a23cbf62098bf0473.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f3e55a0a7a9a3f4ac42f7ca7e59d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e78970fa94f5f1e660d31c894de6a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c58e901406c972a091ba3c6f208ab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次