名校
1 . 已知定义在
上的函数
,
,其中
为偶函数,当
时,
恒成立;且
满足:①对
,都有
;②当
时,
.若关于
的不等式
对
恒成立,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c892562180fb30a756d7e9badf697aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611741a27562dc5f58535cb3b5265b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d164f48d44625586d57fbb721a9779ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b636844dddba5c8e2a96f34e03c7eddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b101ea522cd89ee1e1d6e74a3750e33f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72f75af8076f3e67c3963ca31d3784c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2018-04-26更新
|
828次组卷
|
9卷引用:重庆市育才中学2020届高三上学期入学考试(理)数学试题
重庆市育才中学2020届高三上学期入学考试(理)数学试题【全国百强校】贵阳第一中学2018届高三高考适应性月考卷(七)理数试题【全国百强校】黑龙江省牡丹江市第一高级中学2017-2018学年高二下学期期中考试数学(文)试题【全国百强校】广东省广州市仲元中学2018届高三七校联合体考前冲刺交流考试数学(理)试题【全国百强校】黑龙江省鹤岗市第一中学2018-2019学年高二6月月考数学(理)试题2020届全国100所名校高考模拟金典卷高三文科数学(十)试题2020届全国100所名校高考模拟金典卷高三理科数学(十)试题广西桂林市第十八中学2019-2020学年高二下学期开学考试数学(理)试题广西桂林十八中2019-2020学年高二(下)入学数学(理科)试题
名校
解题方法
2 . 已知函数
,
(1)若函数
在点
处的切线与直线
平行,求实数
的值;
(2)设
,且
有两个极值点
,其中
,求
的最小值(注:其中
为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9969c6515f0a14fb09eb53ab8f4a889.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba13960b18c387109b1bf3c4f5ba207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98f854d6571c0611db2e3214f4acc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c204be088a8fc6c096eedd5b1e7dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843e8b50c8b79348548bb970178ba76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c3b9e5f2cbca34d9a123d7714eb3fed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
您最近一年使用:0次
2020-06-08更新
|
394次组卷
|
3卷引用:重庆市育才中学2020届高三下学期入学考试数学(文)试题
名校
3 . 已知函数
,若关于x的方程
有四个不等实根,且
恒成立,则实数
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32920697dfbdb9a3b35f890f72c9fefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc715cbbe7e7c19f16ad98cdfeb22b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cb09dfe864c243b2f9f9e2d2c56f0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2019-09-19更新
|
526次组卷
|
2卷引用:重庆市第一中学2019-2020学年高三上学期摸底考试数学(理)试题
名校
解题方法
4 . 已知函数
,
.若存在实数
使
成立,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04881d503a42af87d4fc2462cfa4bed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a6ac535fdaa4e988051b492c6a3abc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591e1909b0d9f6e2a69f84b086be4b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
您最近一年使用:0次
2020-12-29更新
|
302次组卷
|
2卷引用:重庆市第十一中学校2021届高三上学期11月月考数学试题
名校
5 . 设函数
,
(
且
,
),曲线
在点
处的切线方程为
.
(1)求
的值;
(2)若对任意
,
与
有且只有两个交点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2276debf705eafefd578573b329b8ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa8366eef01be97f48624409c5d25a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a51fe74d3a239f762e2e1784f62e3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32954848804852a78d03feaf3a55c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18355f016a1a77b8204c668392d07ebf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6832b496c0b8bb79351ddccc279a719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a2e5749d0a6e895187bb3cff9c9445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a1d642536351adb6a11b8e48543d7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
6 . 已知函数
,
.
(Ⅰ)讨论
的单调性;
(Ⅱ)若
存在极值,求所有极值之和的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae3e55a6c24e16d70ca5f79f3b354e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1b014d948a86429dcdcc01dc004dd1.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
7 . 已知曲线
:
在点
处的切线为
,则
与曲线
的交点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc702efc31fbef3d1dd261c387f50cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a29ba49963134a7232fa8574105fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
名校
8 . 已知函数
,
,记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
(1)证明:
有且仅有一个零点;
(2)记
的零点为
,
,若
在
内有两个不等实根
,判断
与
的大小,并给出对应的证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c184df1068a07c2dd0e4f8eb1a2de23f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d60c2cc4acbd0f37be7a259364fbd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f86b47c37828bb4b49e87508ece2f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77397fbf8224ec0ae05cdf385839f70c.png)
您最近一年使用:0次
2019-09-19更新
|
437次组卷
|
2卷引用:重庆市第一中学2019-2020学年高三上学期摸底考试数学(理)试题
名校
解题方法
9 . 某旅游景区的观景台
位于高为
的山峰上(即山顶到山脚水平面
的垂直高度
),山脚下有一段位于水平线上笔直的公路
,山坡面可近似地看作平面
,且
为以
为底边的等腰三角形.山坡面与山脚所在水平面
所成的二面角为
,且
.现从山脚的水平公路
某处
开始修建一条盘山公路,该公路的第一段,第二段,第三段,…,第
段依次为
,
,
,
,
(如图所示),
,
,
,
,
与
所成的角均为
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/a37a9fcc-d8bc-43cc-8090-435e503de79e.png?resizew=190)
(1)问每修建盘山公路多少米,垂直高度就能升高
米? 若修建盘山公路至半山腰(高度为山高的一半),在半山腰的中心
处修建上山缆车索道站,索道
依山而建(与山坡面平行,离坡面高度忽略不计),问盘山公路的长度和索道的长度各是多少
?
(2)若修建
盘山公路,其造价为
万元.修建索道的造价为
万元
.问修建盘山公路至多高时,再修建上山索道至观景台,总造价最少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c8c06a25919f792ef362f20d8ca8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963c8dc63a2fda83c93af8568e9431ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b40aa8d2482d698ebef69cf225f99f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a77d8bdbee3e546d3a82a189509837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a7e0e5238148676a584b1748e04d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aadf9ab510510120699c5eee39ab18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc2a0fc408e6e6a0664da8f7e9f1456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce67302a7f18c69d71b65db2aa273120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a8946c1266843a9a4bb293c6733866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e84bd53f61d4431a42692301938bfd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc2a0fc408e6e6a0664da8f7e9f1456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce67302a7f18c69d71b65db2aa273120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a8946c1266843a9a4bb293c6733866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e84bd53f61d4431a42692301938bfd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54fa68ac228e5b09a024e6f238f5e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85521d132193956a7cf892be0ca89aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/a37a9fcc-d8bc-43cc-8090-435e503de79e.png?resizew=190)
(1)问每修建盘山公路多少米,垂直高度就能升高
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce89b633e5d6bcf9406e3f9208fe06d.png)
(2)若修建
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc957bc8976942915bd8d7b75b8e8bc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ec9e6d3d65dc10191e67f6962a970e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67fcc6663a56558206501bd9d430e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1feb40df85e8deb28601e2bfec896f.png)
您最近一年使用:0次
2016-12-03更新
|
1410次组卷
|
2卷引用:重庆市中山外国语学校2019届高三上学期开学考试(9月)数学(理)试题
10 . 已知函数f(x)=(
)|x|,若函数g(x)=f(x﹣1)+a(ex﹣1+e﹣x+1)存在最大值M,则实数a的取值范围为_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
您最近一年使用:0次