2022·全国·模拟预测
解题方法
1 . 已知函数
.
(1)求函数
的图象在
处的切线方程;
(2)若
有两个零点
,
,且
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8feff5470470b8f26c5b1959b41927e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c07e812a89d33b567fcbc3350449a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6b693b2ace2a0477597dd0fe1f7d09.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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd5bc98650ecc380bb85f79ac0dffa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005ae3f900699e4f764f41bce592079d.png)
您最近一年使用:0次
2022·全国·模拟预测
2 . 已知函数
,
.
(1)求函数
的单调区间;
(2)当
时,方程
存在两个不同的实数根
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f14d5ac4b200025742af59322ac98a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422996be5547a4954e0e580d796faf03.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc877b7551d000bc6baf042461df323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381eafa9212c498e946637eab60dcf4a.png)
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3 . 已知函数
,
.
(1)证明:
;
(2)若数列
满足
,
,证明:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1364af67618b40ad8cbcca772a0a9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0eade9205e848e8d3b2935e2140a38.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195fc747e2fc50cb6df2c844d51e4d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc85a01f2a5b003d545aabd58658f430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde2576b383ae3c851529435805b3adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c0b2c1c02ec4b26c09b043ea6420cc.png)
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2022-05-11更新
|
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2卷引用:东北三省四市教研联合体2022届高考模拟试卷(一)数学(理科)试题
名校
解题方法
4 . 已知函数
.
(1)讨论
在定义域内的极值;
(2)令
,若
存在多个极值点,且
为其极小值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806cfffe7963f2018f018c59ec52b426.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19aadc118f5193353eab80428242983a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b2c4bffa1b91fe840b66855f11a6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56b05326ed4123b18d37d7400e7f32e.png)
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2022-05-06更新
|
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2卷引用:华大新高考联盟2022届高三4月教学质量测评数学试题
名校
5 . 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)
您最近一年使用:0次
2022-05-03更新
|
842次组卷
|
5卷引用:2022年普通高等学校招生全国统一考试理科数学(白卷)试题
2022年普通高等学校招生全国统一考试理科数学(白卷)试题(已下线)专题3-6 导数综合大题:零点与求参及不等式证明-1青海师范大学附属实验中学2022-2023学年高三上学期12月月考文科数学试题(已下线)专题10 导数压轴解答题(综合类)-1四川省泸州市合江县马街中学校2024届高三上学期期末数学(文)试题
名校
6 . 已知函数
.
(1)当
时,讨论
的单调性;
(2)若
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ec71beb68e2f9e620d6009dd89494e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347c62b44fae618a37c145b3b5d1f1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137739372880c55fcfd61efeeaba4eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358625261fbd7540b5fce25f2bd915f9.png)
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2022-04-29更新
|
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4卷引用:皖豫名校联盟体2022届高中毕业班第三次联考文科数学试题
皖豫名校联盟体2022届高中毕业班第三次联考文科数学试题四川省成都市第七中学2022-2023学年高三上学期第三次质量检测数学文科试题(已下线)文科数学-2022年高考押题预测卷03(全国甲卷)福建省福州第三中学2023届高三上学期第四次质量检测数学试题
名校
7 . 已知函数
(
,e为自然对数的底数).
(1)若
在x=0处的切线与直线y=ax垂直,求a的值;
(2)讨论函数
的单调性;
(3)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c7d502016162b581464297f7444d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324c5822114cf4bf2063fb2ddaa27e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f8ae199db6fb88d06f9b40c4937f71.png)
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2022-04-08更新
|
1322次组卷
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6卷引用:东北三省三校2022届高三第二次联合模拟考试数学(理科)试题
8 . 设函数
.
(1)求函数
的单调区间;
(2)若
的图象在
处的切线方程为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea77c000a011043c7dbfc3fd2d72af1d.png)
(1)求函数
![](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/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b979396a703fb14715ba39232f5786a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f6b41028a8fc37ac565613d34789ba.png)
您最近一年使用:0次
名校
9 . 已知a,
,满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e73f43f9346e4fdae617b2cdf9463f4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-03-23更新
|
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10卷引用:八省八校(T8联考)2022届高三下学期第二次联考数学试题
名校
10 . 已知a,
,
且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84b2a35341d42fd618148172c5a1b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8605b378c025b1d20d30d0f9ebab48.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-03-23更新
|
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2卷引用:1号卷·2022届全国高考最新原创冲刺试卷(三)文科数学试题