名校
解题方法
1 . 一个完美均匀且灵活的项链的两端被悬挂, 并只受重力的影响,这个项链形成的曲 线形状被称为悬链线.1691年,莱布尼茨、惠根斯和约翰・伯努利等得到“悬链线”方程
,其中
为参数.当
时,就是双曲余弦函数
,类似地双曲正弦函数
,它们与正、余弦函数有许多类似的性质.
(1)类比三角函数的三个性质:
①倍角公式
;
②平方关系
;
③求导公式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad7736e047d89385512f5715c4434a4.png)
写出双曲正弦和双曲余弦函数的一个正确的性质并证明;
(2)当
时,双曲正弦函数
图象总在直线
的上方,求实数
的取值范围;
(3)若
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07f8015f0a035e80a166092be0b7318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ddb06bbda9da4a045750637f4215593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee7a18d65bcc8b5a94292365009462e.png)
(1)类比三角函数的三个性质:
①倍角公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190a6011b263200d13f62e636398e26d.png)
②平方关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da8f21743a3a14ce326eaeecb86a417.png)
③求导公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad7736e047d89385512f5715c4434a4.png)
写出双曲正弦和双曲余弦函数的一个正确的性质并证明;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9213864ba0aa83b0f11be6ad6ed6bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1c01b5cfd9630ca3e7d8f48ada6ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a602db560a460408aae63f5cde96d6.png)
您最近一年使用:0次
2024-06-10更新
|
352次组卷
|
2卷引用:浙江省杭州市西湖高级中学2024届高三下学期数学模拟预测数学试题
名校
2 . 已知函数
.
(1)当
时,证明:
;
(2)当
时,
,求
的最大值;
(3)若
在区间
存在零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb69579884d02df940d0ee1577b5e1a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9e6bfd0a580544713a59ed282bfe4a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/213f600bc788894ff91df0356abb84f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
3 . 已知
是方程
的两个实根,且
.
(1)求实数
的取值范围;
(2)已知
,
,若存在正实数
,使得
成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37674da31fc7bffe11c6b45f52cd2bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e9ecfdf2ec90ea96e104158aec81c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3f8115a9459a4a386008c2b8d56de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd5b2efe2aafa920ecb259f276e2d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4d89f6c10871a7b3475c00801f608d.png)
您最近一年使用:0次
2023-05-26更新
|
1398次组卷
|
6卷引用:浙江省杭州第二中学等四校2023届高三下学期5月高考模拟数学试题
浙江省杭州第二中学等四校2023届高三下学期5月高考模拟数学试题 湖南省长沙市第一中学2022-2023学年高二下学期第三次阶段性测试数学试题重庆市万州第二高级中学2024届高三上学期8月月考数学试题(已下线)第九章 导数与三角函数的联袂 专题三 含三角函数的恒成立问题 微点3 三角函数的恒成立问题(三)2023届浙江省四校联盟高三下学期数学模拟试卷(已下线)专题19 导数综合-2
名校
解题方法
4 . 已知函数
.
(1)若函数
为增函数,求
的取值范围;
(2)已知
.
(i)证明:
;
(ii)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e43125e0ae8620e175448be664fc025.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5829874c06742289bc029290a8631354.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfc033fc70e74f27fb0da9874199324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ab2e5e3dd3a1c768a88eb182b44d9.png)
您最近一年使用:0次
2023-04-06更新
|
3643次组卷
|
8卷引用:浙江省杭州地区(含周边重点中学)2023届高三一模数学试题
名校
5 . 已知函数
,
.
(1)求
的单调区间;
(2)当
时,
有两个零点
,
①证明:
;
②设函数
的两个零点
,
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986a03a7a8a98b83d17d166d12996b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28f07592d8b7ed6648196fb0f66563d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e23f593cd4b055a3f6b0705cd70a99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ea94f11a28aceb8ac7a7be2080f135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a415767156945ea8ada9ed3756019fc.png)
②设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0b5841602f31eddea479cc3bcb3369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104ea0b930594d027e94236827f6c491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3916e25d592d36e90fe4f35be72c43c2.png)
您最近一年使用:0次
2022-12-18更新
|
625次组卷
|
2卷引用:浙江省浙大附中丁兰校区2022-2023学年高二下学期期中数学试题
名校
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4e6107be46de0bb91fcecb65b9ee2a.png)
(1)若1是
的极值点,求a的值;
(2)求
的单调区间:
(3) 已知
有两个解
,
(i)直接写出a的取值范围;(无需过程)
(ii)λ为正实数,若对于符合题意的任意
,当
时都有
,求λ的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4e6107be46de0bb91fcecb65b9ee2a.png)
(1)若1是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3) 已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df628874faa615d0cf49e38c6b9968a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(i)直接写出a的取值范围;(无需过程)
(ii)λ为正实数,若对于符合题意的任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df7ea8007570536864a5cf4b00a8d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafb39935a3b8eee7b2529063ab3fda6.png)
您最近一年使用:0次
2022-10-30更新
|
1617次组卷
|
7卷引用:浙江省杭州市2022-2023学年高三上学期第一次质量检测(期末)数学试题
名校
解题方法
7 . 已知函数
.
(1)是否存在实数
使得
在
上有唯一最小值
,如果存在,求出
的值;如果不存在,请说明理由;
(2)已知函数
有两个不同的零点,记
的两个零点是
,
.
①求证:
;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c565eed01da8f81dcb33909bd65d16f1.png)
(1)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5343910f9d9bf80726643a4618ea15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76960fb39a0b6e2ba3f77f139c06bcf4.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee900dbbf7e47bd9a86c1c757f0f3f0e.png)
您最近一年使用:0次
2022-10-11更新
|
941次组卷
|
4卷引用:浙江省杭州第二中学2022-2023学年高三上学期第二次月考数学试题
名校
解题方法
8 . 已知函数
.
(1)若
时,恒有
,求a的取值范围;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2800ac4afe3555ab93051be5840bc1a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/805eb275b8a7104797fd6df6713a646d.png)
您最近一年使用:0次
2022-10-01更新
|
1082次组卷
|
3卷引用:浙江省C8名校协作体2022-2023学年高三上学期第一次联考数学试题
名校
9 . 已知函数
,
.
(1)记
,当
时,求
的单调区间.
(2)若关于x的方程
有两个不相等的实数根
,
.
①求实数a的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78b72e777c37963f7c48aa27a21ccdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2294bf0b10d85236ca70aa7f6e52103.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d22b4beb798f9b1b12b9036e725f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求实数a的取值范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475c9073257b3d0760e2c6051a82d592.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
.
(1)当
时,求
的单调区间和极值;
(2)设
为
的极值点,证明:
(i)当
时,存在唯一的
;
(ii)对于任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eeee5c772345c779b6659a46bce4b1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(i)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdd15a2bca07d9d20c923af4b5668c3.png)
(ii)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f722eef3336ce89f442a24cb461564d.png)
您最近一年使用:0次